Teach me How to Duel :colored:

Yay, I finally finished coloring this! ^^
After scanning all that drawings, I decided to color them in the order of making (of course), and I really liked this one \o/ I think is one of my bests, it looks very cool and funny XD
And, as you can see, I improved a lot my coloring too o.o Especially the shading and lights, on their hairs, etc... /o/
The "Anime Rock Girls" poster on the wall was made by ~popfreakingtart, you can find it here: [link] ^^

Aah, and that different "I" on the bottom right corner of the drawing is my signature "mark", made by myself ^_^

(P.S. If you wanna see the drawing in original size, click Download)