Oh, what I'd give
I'd give my left nut to be able to do something like this.
What some people have to remember is that no piece of art is without flaw and that's what makes art perfect. Any "flaw" can make something unique. If his wrist may appear a little big, that's cool. If you feel as if it needs an explanation, there are many to choose from. Maybe it's swollen from getting hurt, or maybe his wrist is just like that. I know I'm not completely symmetrical.
It is what it is. A beautiful piece of art, unique and amazing. Keep it up.
lol@PlasmaNuke for reviewing a comment, and barely about the art.