Sat on this one for a while, but after a ton of handholding from a couple friends (FenixDust, Tenenbris, and JetWave, since I feel I ought to namedrop them for proper credit), I think I can call this one done. Said friends helped a ton with the lighting, shadows, and sweat you see there. Even now something in the back of my head tells me a part got missed, but I might gain more confidence with that the more I do this.
Anyhow, here's a sexy, sweaty pony if you're into that.