Collaboration sketch for Ballistic456
This is reportedly Ballistic456's first pony and as such, it's very good. Some of the subtle lines are great while others (front legs) need a bit of smoothing. The head to body ratio is off, but that's common. Keeping a reference nearby helps a LOT. A few other suggestions are in the picture.
As always, these are just my thoughts so they should be considered as suggestions and not iron-clad rules