Hey dude, its been a while since i checked in on Newgrounds, i think the last piece from you i saw was that fluttershy drawing (totally specific) and Man, i'm really happy to see the amount of development your works made in such a short space of time!
The facial expression is dynamic and attractive, it looks like it could be animated really well and look fantastic doing so!
the colour palette and shading is gorgeous! its really smooth and and shiny in the right places, her mane looks really velvety and soft! nothing in this clashes to hard with each other, you've balanced your tones really well and it makes for a really sweet looking design!