EDIT: Woops, forgot to add one panel there!
... what else is there to say?
No Pinkie Pies were harmed in the making of this comic.
To all non-bronies:
Basically, in contrast to other ponies, Pinkie Pie can defy the law of physics at will, and has the ability to mess with the "4th wall". (Which means a cartoon character is aware that they're in a comic/cartoon.)
This is widely explored in the fandom, but it's actually canon in the show itself, if at least to a degree.
(Pinkie adressing the audience directly, for instance)
For more comics on the subject, here's a few: [link]
My little Pony: Friendship is Magic is (c) and HasbroEDIT:
Woopsy, forgot to mention this - Backgrounds (and backgrounds *only*) are traced from some clips in the show itself.
Oh noo, tracing is evil and stuff.
Honestly, I practically never did that in the past ... but then I took an arrow to the knee.