That is pretty awesome, you did such a good job on the traditional Jazz. Two little incitive comments though, the chin seems to be that of like batman, like manly and so on, which im not sure if its good or not. Also there seems to be too much grey throughout the figure, you might wanta add a little more diversity of colors here and there.
I like it, my one complaint is the facial expression. It kind of looks like he's taking a dump... But awsome detail! It's just the mouth that gets to me.
Thanks !! the next character is Galvatron and cosmos More ilustrations : http://robot1979.deviantart.com/
Niceee, Galvatron and Cosmos, cant wait to see those finished. Also youre other illustrationsa re pretty amazing.