or it is just the eyes. something is horribly wrong with that face

@Mg127  
Luna , Celestia , Cadance are long face ,too

@Background Pony #F09C  
… that face is not fitting her. is this pony male? no, so why use the male face and female eyes? that’s ugly.

@Mg127  
Because she is a pony

why such a long face twili?

@Zahnrad  
As someone who pays a lot of (probably too much for my health) attention to stallions, I’d agree and could say that even they don’t generally have muzzles this bulky.
 
But the rest of it looks very nice, like their other crystal ponies (something I’ve personally yet to learn), it’s just the muzzle seems a bit out of place and detracts from the rest of the work. In my opinion, at least.
 
Although, it could also just be that the eye needs to be repositioned and rescaled to the upper left a bit. I only say that because it’s a problem that I’ve run into in the odd occasion that I’m not tracing stallions.

Looks a bit bulky male around the muzzle.