Here comes a whole bunch of Star Tracker transformation pics. His -crossdressing- cosplay sees him trying to find all sorts of little odds and ends he can use in his outfits, and more than a few times he's gotten his hooves on a cursed item that transforms him :D

Normally the accessories worn by a portrageist melt into lifeless paint if they're removed from their painting, but one that is particularly powerful and old can exist on its own and imbue its wearer with the abilities of a portrageist :P

And the rest:
"Regular form":/2608229
"Harpy form":/2608231
"Inflatable form":/2608232
"Skunk form":/2608234
"Lamia form":/2608235
Portrageist form
"Siren form":/2608240
"Goo pony form":/2608242
"Twilight Sparkle form":/2608248
"Zebra form":/2608251
"BONUS: LIVING DRESS":/2608252
"BONUS: SHADOWBOLT":/2608254