You should add some shading, they look sort of flat. Also maybe use a ruler along straight edges? Attention to detail adds a lot =)
pretty cool, you should use a rule or something to get darker and straighter lines to define the shape... but overall cool stuff
If i were you id use some copy paper.
Looks nice, maybe a bit unfinished but nice.
I'd suggest going over the lines with a detailing pen / fine point sharpie to give them more of a finished feel.
Any time that I doodle, I end up going over the finished product with a sharpie so that I can finish and correct lines, even though it usually makes the lines wider and pretty bulky -.-
I LIKE THE PART WHERE YOU SPELLED AK-47 KNIF
IT WAS SO EPIC.
Looks nice :-) But why would you get homeworks like this? i dont get it.