this is a great piece of work mate, like I've said the composition is awesome, the stylisation is great, just thought it could do with some real development in the key areas I have listed, which I think would just lift it to that next level. They are fairly minor improvements. In particular just lifting the details in the skin as you have quite detail work in the cloth and hat, but the face seems to be less worked up, in comparison to other areas. Also the creasing seems to be lacking a little in the legs cloth, and the cuff of the jacket, I think would aid the the realism of the character, even if it is stylised. Also I would suggest making the skin slightly more specular, as the face a very plastic, or clay like feel. But mate this is a cool piece of work, would love to see it animated if your going to go that far.