Cool! I’m gonna try and guess
Nightmare Moon, Muad, Bat Pony, Snowdrop, Lyra, B.A.B Fluttershy, Tempest, Fluttershy in GGG dress, Twilight in coronation dress, Rarity in a dress (can’t see much of it), Giant Luna
Anon, S1 Luna?, Fluffle Puff, Fluttershy, forgot the name of that Pinkie look alike with piggytails (IRRC it’s not Pinkie? Unless I’m thinking of someone else), Pinkie in a costume, Dawnbreaker
Equality Starlight, Fluttershy, small fluttershy, Octavia, RD, Pinkie again, Twilight
I can’t see who that one is but looks like Trixie. Not sure if that’s a seperate pony or part of another one, but I’m gonna guess it’s Zipp because of the colour and who it’s next to. Izzy, Looks like Snails from what I can see of it. Scootaloo, Applebloom, Sweetie Belle, Parasprite, Cadance, Fluttershy, Trixie, Luna, Celestia