Exactly what it says on the tin. I don’t have names for any of them, but I did come up with a few traits for each one.

Top: Rainbow Dash x Discord. Competitive like his mother, and a huge prankster. His timberwolf leg has a tendency to fall apart sometimes.

Bottom Left: Twilight x Flash Sentry. Not an alicorn, but she can conjure temporary magic wings. While she can use other weapons fairly well, her weapon of choice is a sword. Has zero tolerance for crap.

Bottom Right: Spike x Ember. While she is capable of flight, she prefers to glide or run. She always seems to have a witty or sarcastic comment for any situation.