The elephant motif is smart, the plates all match with the body's, and it looks infinitely cooler than his current helms.

All I'd say to do is matte the metals a bit (his metallics look like plastic for some reason on his body.) and make the black lines on the back of the ear indent to match the body's creases.

Alternatively, you could go even further beyond, and skin the body as well. Being one of the first tennogen skins sets precedents for future skins, and is more likely to be accepted by DE.