Holy s3x, Batman! That's great! Very nice shading and the different grey tones are hard to get but you've got almost all six. Very nice work. I'd do things to that picture if only it were real ^^
Ha! No, no, no! Not a single gripe about the picture! I was commenting on your ability to almost have captured all six grey tones. Which is very hard to do. You've done very well and I want to gobble up this picture! ^^