Nice piece, I'd class this and most of your other art works as "a good start". Basically what you need to do know (in my opinion) is get your hands on some drawing software. It doesn't have to be one that requires money like Photoshop, you could get GIMP which is just as good but free. Then what you need to do is make the lines darker and add colour or if you prefer to keep it in black and white more shade, finally a background, even though not a lot can be seen of the background in this piece it's always nice have something there.
Reviews for "Deadman Wonderland Shiro"
MaartenC responds:
I've had recommendations of GIMP before, I'll seriously consider it now. Everything till now has been done with hand, which is indeed a tad... outdated, but I do like it.
I'll see what I can do, thanks for the advice.