Nice peice of work man! The only thing that bothers me about him is the shader/texture you have used on him - he looks metallic!
Keep his skin shiny but more like the skin on a horse, you know that satin/velvety finish. A bump map or too would help to make it even more real too.
But if you want the effect you have achieved - then take no bleeding notice of me!
Are you gonna animate him?
Tickety boo and ta ta for a bit...