It's nice to see OCs with more simplified color palettes like how most of mine are (2-3 colors at most)! Not that there's anything wrong with more colors...I'm just more drawn to ponies that look a little more down-to-earth!
You've blended all the browns and tans very well, they're a nice balance of bright and subtle. I like the glasses, too, since you don't see glasses on too many OCs!
My only critique has to do with the proportions. She either needs to be thickened a little in the face or thinned a little in the body. To me her head looks a little small for her body. Very nice work, otherwise!