Earth Horse, Steel Ox, Wood Sheep, Fire Snake and Water Dragon

[ScaryPotato]

This is something I'm hoping to use as a gift for someone, maybe on a shirt or mousepad...what it will go on hasn't been decided yet. I'm pretty happy with how it turned out, but having never drawn a horse before, I'd like feedback on it. Is there anything you'd change with the design/colours?? I should mention that the Chinese character was provided free and is not something I'd even have the foggiest idea how to draw

*edit*
I went ahead and put four other Chinese zodiac creatures together...it's pretty fun, I might just have to do all twelve