First of all. I think it looks incredible. But why stop at the hands? There is so much nice detail in this picture, but the smooth kinda generic looking hands broke the illusion for me.
It's more nitpicking but I don't want to lie.
It just could've needed a little touch of roughness, I think. If you actually wanted them to look like this. sure why not. It's just my preference there.
Also the text at the bottom is kinda hard to read (nitpicking again...).