this is a pretty cool illo and a solid concept but I think it could use some improvements overall. First the photoshop airbrush shadows are not done too well... solid colour would be better.
some cleaned up black line work and variation would be nice and finally stick some of that type up in the guts, etc. get a little more creative witht the type, not necessarily hand done, but maybe red in the balck area of teh ribs. Not trying to rip on it, just a critique