Okay, guys... Just a suggestion... but... I'm pretty sure she might be maybe kinda sort of not really a little tiny bit evil. Just putting that out there. I'm not saying she IS completely evil... but... yeah... just saying.
I love the pinkamena character so much! This and other pinkamena art causes me to think that there could be so much more potential for this entity, stretching from tyrannical ruler to even heroic pinkamena. She could be one of the most versatile and most impacting characters I have ever witnessed, fulfilling multiple roles.
I love what you did here though, really captures her seething rage and mania.
If she were evil, she'd have to become the opposite in personality of what she currently is to be a successful villain. And then she'd be Coldblooded Pinkamena. And if she were... she'd conquer her universe and then find a way to go to another universe... one where the her there isn't evil. and then Hotblooded Pinkie and Coldblooded Pinkamena would do battle. And it would make the final battle of Gurren Lagann look like flailing babies trying to hit each other.
I don't know why she would turn evil, but I do know that I would do the only thing I could do to survive the ordeal.
And by survive, I mean wipe myself from the space time continuum by undoing the evilizing event in the past so an alternate version of myself could live in the alternate timeline. The version that deals with evil pie is screwed either way.