Thats one epic nerd!!!!! I like it a lot simple but clean but could use a background other than that i like it a lot!

It's good, but go ahead and fill up the page. It's ok. Most of my at at the moment is from my drawing book too, so that's not a problem. Hey, you got what ya got, right? But all that extra space is just begging for something to go in, and lots of white space hurts your scores. Go ahead and fill it up. See my art to see what I did. Actually, I may have gone too close to the edges on some, but they still turned out ok.

'Vladimir' is the same way, but the white space is within the drawing. Add more detail or content into the white spaces and it not only makes the picture more interesting, it also keeps it from looking incomplete or noobish.