Here's my other take on ponified Portal characters. In Her case I may draw a second, more robotic version, you know, "torso-and-head-suspended-on-the-ceiling"... -ish, as it could be interesting. Anyway, for now, here is something like an android or what.
She is... maybe not technically an alicorn, but visually. And the cables that make an illusion of wings are Her' "arms" in game. So this kind of works, I guess.
I also couldn't give up Her helmet, I mean, how awesome is that thing? So She's now... half-android half-robot. (If you think about it, in terms of functionality it's actually quite pointless).
I also didn't want Her to have mane nor tail. Too organic, this stuff, no thank you. So the cables emerging from Her more robotic parts create an illusion of hair. (Yes, these cables do not come out of Her butt, but from this circular thing on Her back).
And gosh, I just love Her color scheme.