I vote for more sharper edges, and more values in ur colors. more colors in shadows/highlight would increase the values and make it POP! I always say that but hEY! when it POP! it win! b1llly
I'd say throw some darker darks and lighter lights in his shellwork. It'd make the individual scales pop a bit more. As they are now, they look a bit shallow and thin. Like they wouldn't really protect him, much.