Filly Flitter

I couldn't help but feel like she looked a bit off when I first finished, but after adjusting her over and over I think I got it right. This one was a request that I took in order to test my ability to create a proportionally correct filly. Coming next is a vector of Cloudchaser, because what would Flitter do without her good friend? (Okay, maybe Cloudchaser was part of the request and I'm just doing them separately. Expect her sometime tomorrow.)

Please point out any errors you see so I can learn from my mistakes and fix them right away. 

Time spent: 4 hours + editing.