After doing a search on this site and comparing the colored versions of this, I've found your's to be my favorite. Mainly because your's is the most accurate, in my opinion. That alternate version looks awesome as well. Most seemed to miss the shadow across the muzzle and the chest. Some others had the iris and pupils at sizes that seemed off, in my opinion. And a few other's didn't get their lines or colors right.
Thanks, I appreciate it. I try to stay close to Joey's lineart for the most part. The others I did, I was going more for an authentic MLP style with the shading, so I left those out, but I felt this one really needed it.