I love the wave. It's gorgeous pixel art and works really well on the AG. And I love how you're keeping the rest in style - like mah jong pieces. I think the front is pretty much perfect. How about separating off a little of the back and using more of the blue? I don't think you'd need it if it wasn't for the engine parts of the AG but maybe it might help there?

I love it though. It has almost a ceramic feel to it.

I was trying to get a couple of photos of my piranha scorpion last night and only then realised I have fallen victim to a slight difference in the editor display - my ribs on the back are one pixel out down one side. I'll have to fix that.