Pinkie Pie is the third of the Pie sisters I carved out of Ytong and, assuming that the four derived a little inspiration from the “four tempraments” (Pinkie Pie = sanguine, Maud = phlegmatic, Limestone = choleric and Marble = melancholic) I am trying to give each of them a pose befitting the respective temprament.
In case of Pinkie Pie I think it would have been better if I had turned her hindlegs a little more downward to give a more realistic jumping pose, but then again, we are talking about Pinkie Pie, so I assume that her tail can take on the consistency of a bouncing ball whenever she feels like it :D