Artist’s description from their DA page:

Every incarnation of the Rainbowshine and Dizzy Twister model that appears in the show! (Not including errors such as different eye colors or mismatched cutie marks.)

I’m pretty sure this is my favorite character model. I really love the mane and tail.

Most of these guys only appear once, and only for a few moments. Some of them have fanon nicknames, some do not. Honestly, I don’t think it’s necessary to name such minor characters.

I guessed at the eye color of the white one, and the shadow color of a few others, since they weren’t shown. The three Earth Ponies do not have cutie marks at all.