Great figure and pose. TERRIFIC line work but the color has that weird translucent quality that Photoshop tricks can give. I would float up the blacks to a new layer and remove them from the color layer then run the Cut Out filter on the colors and then paint bucket to "de-anti-alias" then slight blur to "re-antialias" or maybe distort anotropic or whatever the heck that filter is called that smoothes things out. Maybe you should try linniar gradiantiants into selections for the color but really I think they just have that filter look and you shouls eith paint them in with a hardbrush or make straightline selections and fill them. Looke realy good though but you were asking for advise to be even better :)