Okay, I'm only 13 and lack ability, so I will refine my style by combining the 100 theme challenge and 100 prompt challenge. Here we go!

1. Draw an image, copy it three times and color each differently/with different colors.
2. Draw something beautiful.
3. Draw something ugly.
4. Draw fanart of your favorite thing.
5. Draw something with no same color used twice.
6. Draw a short comic of 3-7 panels.
7. Drawing using only two colors.
8. Make a drawing, coloring it with three depths of shade and three depths of lighting.
9. Make a drawing in black and white.
10. Draw an imaginary object.
11. Sketch, lineart, colour. Use an hour or more for every step.
12. Traditional. Scetch, lineart, colour. Use an hour or more for every step.
13. Make a drawing on the computer using tools that mimic brushes and tools in traditional media.
14. traditionally draw a face, male or female. Design a decorative makeup/tattoo to decorate the face.
15. Traditional inks. Colour with colour pencils.
16. Scetch a dynamic pose of a human. Feets can't touch ground and hands can't be on sides of the waist. No matter if you finish or not.
17. Draw something with not your usual style. Be it a mock or not.
18. A 10-frame animation. (Flash, Flash Player. Adobe Imageready, etc)
19. Do a pencil-drawing with pencil/charcoal and eraser only, and finish it with proper shading and such.
20. Draw something very detailed.
21. Work out a traditional work that has 3d elements added to it, like fabrics and plants and etc
22. Draw something very simple.
23. Draw something very small. (for example; A5/500 x 500)
24. Draw something very big. (for example; A3/2000 x 2000)
25. Draw fanart of your least favourite series, presentable, not mockery.
26. Draw your favourite animal.
27. A traditional painting using only acrylic/watercolour/oil-colours, et cetera.
28. Draw something you've never drawn before, not even scetched.
29. Do several scetches of the object/organism you have the most trouble drawing.
30. Traditional draw something using colourpencils only
31. Draw a zoomed in image of a bodypart of a human, something from neck down.
32. A traditional inked lineart, coloured with one or two colours only.
33. Draw something from the bird-eye view.
34. Paint something with coffee.
35. Draw something surreal.
36. Draw a battle.
37. A traditional pencil-scetch coloured with watercolours.
38. Draw a nude human. No exaggerated tits or penises.
39. Take two photos of ordinary everylife objects. Combine and photomanipulate them in Photoshop (or any other program) into one extraordinary object.
40. A computer drawing, pixel-drawing with pixels only. Atleast 100px x 100px big.
41. Draw a bird flying.
42. Draw a computer picture using magic-wand and fill-tool only.
43. Draw a vehicle.
44. Do a collage. Of magazine-clippings, fabrics, buttons, pins, etc + you can use an ink-pen to create effects or details.
45. Color a drawing without a scetch or a lineart. Begin with the colours and continue with the colours only.
46. Draw a portrait of a live human of your choice. Caricature or realistic.
47. Design a decorative outfit of your liking.
48. Do a small sculpture, no more 20 cm or less than 10 cm in height. You can use clay or even play-doh.
49. Draw a drawing and colour it with three shades of one colour only.
50. Draw an animal with surrealism added to it.
51. Draw an imaginary/existing landscape.
52. Draw something with foreshortening.
53. Pick two characters (your own or someone elses), male and female. Genderbender them.
54. Draw a your representation of mental disorder.
55. Draw something using only one line aka not lifting your pencil off the paper. You can do this with tablet too but it might be harder seeing how the work-space is limited?
56. Draw someone chubby.
57. Draw an imaginary/existing building.
58. Draw a character doing two things at once. Standing/breathing et cetera not allowed, something dynamic and lively please.
59. Draw a character doing four things at once. Same notes as above.
60. Draw something traditionally and Photoshop it so it looks digital.
61. Draw an anthromorphic character.
62. Oekaki, 500 x 500
63. Draw someone thin.
64. Draw your least favourite thing, presentable, not a mockery.
65. Copy a famous painting and change things to your liking but not so much it's not recognisable anymore.
66. Draw a picture copying famous styles, art noveau, children's illustrations, church paintings, et cetera
67. Open a book near you and draw what's happening on the page.
68. Listen to a song, and illustrate what it reminds you of or what visuals it brings to your mind.
69. Close your eyes and draw five scribbles on a piece of paper. Then, try to make a drawing or character out of each scribble. You can add on to each as much as you like, but you can't erase any part of the scribble.
70. Do a drawing using your feet.
71. Do a drawing using your non-primary hand.
72. Do a fingerpainting.
73. Put tiny splotches of watercolour on paper and wait for them to dry. Add lines to the splotches with a pen and see if you can make them something else than just drops of colour.
74. Draw a person with one exaggerated body part.
75. Draw a diarylike comic-illustration of your day.
76. Illustrate a person's change of expression through a comic (3-5 panels)
77. Draw a character (yours or someone elses) in a style of another series or person. (Not your own style.)
78. Create a wallpaper for your desktop. (Preferably from your own drawing)
79. Draw something beautiful and ugly. Use your imagination!
80. Draw an image, copy it three times and colour each with a different light-source and/or type of lighting
81. Choose a character or subject and draw it in a single or three different compositions three times, experimenting with a different line type/weight/dynamic in each one.
82. Choose three different media and three distinct textures and create a triptych composition in which you experiment with rendering each texture in some way: realistically, abstractly, etc.
83. Do a collage using materials, paper-clippings, fabrics etc only, no pens this time!
84. Draw a picture without erasing anything, including the scetches and mistakes
85. Draw a huge insect with all the details visible.
86. Design five different underwear in five different materials.
87. Draw something seasonal.
88. Draw something using shading only. (Black on white, etc)
89. Draw something using lighting only. (White on black, etc)
90. Have a friend you haven't gift-arted yet? Surprise them.
91. Draw a heterosexual couple. No mockery.
92. Draw a homosexual couple. (Two females. No mockery)
93. Draw a homosexual couple. (Two males. No mockery)
94. Draw an image that supports something against your beliefs. A presentable one.
95. Draw an image that has something to do with religion (any of them, no mockery)
96. Hit "random deviant" button until you find a deviant with an original character. Draw it, and no skipping! (Show it to the person too!)
97. Put your playlist on random, pick a song, find the lyrics for it and choose a random line or two which you will illustrate.
98. Draw one of your human-characters as an animal/one of your animal-characters as a human.
99. Pick one of your old, old drawings, and redraw it.
100. Congratulate yourself for a work well done and do an appropriate image of CELEBRATION. This is obviously the final task. I hope you had fun.

1. Introduction
2. Love
3. Light
4. Dark
5. Seeking Solace
6. Break Away
7. Holy
8. Innocence
9. Chemistry
10. Breathe Again
11. Memory
12. Insanity
13. Misfortune
14. Smile
15. Silence
16. Questioning
17. Blood
18. Rainbow
19. Gray
20. Fortitude
21. Vacation
22. Mother Nature
23. Cat
24. Duality
25. Law of Fysics
26. Tears
27. Foreign
28. Sorrow
29. Happiness
30. Under the Rain
31. Moth
32. Night
33. Expectations
34. Run
35. Hold My Hand
36. Precious Treasure
37. Eyes
38. Found Ya!
39. Dreams
40. Rated
41. Teamwork
42. Standing Still
43. Dying
44. Two Roads
45. Illusion
46. Family
47. Creation
48. Childhood
49. Destruction
50. Breaking the Rules
51. Greed
52. Deep in Thought
53. Mask
54. Tower
55. Waiting
56. Danger Ahead
57. Sacrifice
58. Kick in the Head
59. No Way Out
60. Rejection
61. Tiny
62. Magic
63. Do Not Disturb
64. Multitasking
65. Horror
66. Traps
67. Playing the Melody
68. Hero
69. Annoyance
70. 67%
71. Obsession
72. Soft
73. Dance
74. Are You Challenging Me?
75. Mirror
76. Blinded
77. Test
78. Drink
79. Starvation
80. Words
81. Pen and Paper
82. Can You Hear Me?
83. Heal
84. Frozen
85. Spiral
86. Anger
87. Guardian
88. Pain
89. Through the Fire
90. Trinity
91. Drowning
92. All That I Have
93. Give Up
94. Last Hope
95. Advertisement
96. In the Storm
97. Safety First
98. Puzzle
99. Solitude
100. Relaxation