okay. alot here.

first of all, i would like to say that the comic made me laugh when i found out how the opposite disappeared. (death by eraser!!!)

some criticism.
black jacket guy (you i'm guessing)-nothing much here, other than the fact you need to make the head just a little bigger.

opposite-alot here. first of all, the perspective is WAY off. the legs were fine, even though it looked like he was leaning back. the chest and arms almost look like he was standing staring straight at the cp screen. the arms could be a little longer and the hands could be smaller (sorry to say, but his arms look like mole arms.) tail. it made me laugh. there's nothing wrong with it but by god he must be gay. (your opposite, not you)

just think about some of this and put it into working on your next artpiece.
btw, what program do you use?