I would say that Lunatone-Full is quite good actually, nice idea!
Toterior is weird for a few reasons:
a) the shell looks like it has a hump
b) WHY are there GREEN leaves behind it near the tail ???
c) the head horn is not attached properly.
I dunno about trainer sprites.
Shiftry is OK, but I dont thikn you should have changed the shading on the hair
If I were you Id put the Lunatone in your sig instead of Toterior...