Based on the Hasbro G1 Twinkle Eye pony, this is Ponyville Bright Eyes. Her body colour is original but everything else has been repainted. She has also had tiny pink jewels added where the shine in her eyes would normally be. I thought jewels covering the entire eye, as with the original pony, would have been too much on her giant eyes. I didn't want her to look like a chameleon.
Chibi Bright Eyes is for sale for $15 and if not sold before then, she is heading to the Fair (in less than three weeks!)