help with design...

So I want to make pony-themed purses... But the design is hard!!

here's what I got so far:

VERY rough sketch mind you.

So yeah.. the unicorn looks dumb... any thoughts?

I want the cutie-mark on the front... and something about the species somewhere else? like pegasus wings onthe back.. but unicorn horns don't go anywhere! and the poor little earth ponies don't have  anything!

sigh