Late June last year, in the shade (obviously... and ignore me, it was horsey bath day, and I look like a slob

Mid- July, same year, better light

Late August, same year, sunset lighting

Two weeks ago, late afternoon lighting. He's got some weird highlights going on now around his legs, ears, throatlatch, and neck. Please ignore my position, it's in the toilet, and a point of much focus and rebuilding right now.

So, he's related to the Horse of a Different Color from Oz. Any guesses are greatly appreciated! If you want other angles, I'll see what I can do to get other shots. Thanks!!
EDIT: Sorry about the ginormous pic sizes... I honestly did resize them on Photobucket before I added them!!! ARGH!!