Why those specific ones? They're high quality, but I wasn't aware you were especially attached to the characters (and I'm embarrassed to say I'm not sure what their names are).
Flitter and Cloudchaser, from Hurricane Fluttershy. You should be embarrassed
Why? Because they're freakin' adorable, and Cloudchaser and Flitter need more love ^^ Outside the Mane 6, they just may be best pegasi. Edit: Best adult pegasi, at least.