This is wonderful!
Would you be willing to make a couple small and one possibly medium change?
If not, I'll definitely use it as is and just tweak the colors a bit. :3
If you're willing to tweak it though:
Would you be willing to shade the reds slightly?
Specifically, I'd prefer the following two reds:
As: light red for the foreground horn. The darker red for the mane stripes and the background horn.
Leaving eye unchanged on hue.
For the eye, making the bright red a little bit more dominating over the black (enlarge it out slightly / shrink the black bat slight? Not sure.) for the purposes of that showing a bit more clearly on the avatar version.
And the medium tweak:
Making the hair a little bit more billowy on the foreground side. Specifically, the back of the jaw/neck area is kind of throwing and makes it seem as though the hair is disconnected somehow.
To be more specific, if you could accomplish something along the following lines:
Vector Hair 1 or
Vector Hair 2
Thank you again! If the tweaks are too much of a bother, then I'm fine with you leaving it as is as well.