Effort: 2/2 - Seems like you're just starting with this stuff so I'll give it to ya.
Look: 1.25/3 - Not too many positive things to say here - no offense intended. So I'll just give you some general advice. Make sure to keep the proportions of your render correct. This is usually done by holding shift. The whole thing is a little dark, and his arm is the brightest spot. Your player should be the focal. Assuming you get photoshop soon, try following some of the tips I've outlined here: http://www.vhlforum.com/index.php?/topic/2501-jacks-guide-to-making-not-shitty-sigs/#entry12800
Also, make sure to post all of your sigs here: http://www.vhlforum.com/index.php?/forum/100-graphics-designs-writing/ before submitting them, to get feedback from other members. PM me or post in there for any gfx questions.
Creativity: 1/1 - Why not.
Total: 4.5/6