Pinkie Pie is the newest victim of the attitudinator and she has just become her IDW comics version "Pinkie of Dark Water", she is taunting Applejack, who is just noticing that MAYBE something is off with her cousin…

This is a standalone, (as you guessed and as you know) part of the Equestria Girls series of My Little Pony, following my fan-story Equestria Mermaids.

:iconannonmyous: wanted to see how the girls would turn out if they became their evil selves from IDW's "Ponies of Dark Water" comic series

I thank you! Thank you! Thank you!