The Green is somewhat Floating over the Top and Seems really unnecessary Some Parts are over sharpened I dont like the lighting for some reason
The lighting is totally messed up. Hes dark on the bottom right half where the light is comming from and he has light brushing off his shoulders on the top left where there is no light source. Straight wierd. Keep in mind what looks real next time you design and just keep making sigs if your not happy with anything and eventually you will find what works for you.
good call ep0cx. besides the lighting, this is a good looking sig. i really like the green above his head. masterchief has been done a million times, but yours actually looks good, and its unique. just move the white gradient to the top left corner and leave the bottom right corner dark. that should really improve the sig overall.
