Even after more than a year, this is still my favorite MLP song. You did a good job of portraying it. For some reason it makes me think of a dramatic comic book. Could be the classic poses of a protagonist in horror and hopeless despair--aka Cadence being like "Ohgawd she's pretending to be me why!!" She's what makes this picture, at least for me. The face and tilted angle really give you an idea of what's going on. And Twilight serves as the devoted sidekick ready to fight like a baws--ironic since she's usually the leader being followed. And of course, fake Cadence's face in the background. Classic comic touch.
You do a good job contrasting light and dark, but for some reason I feel like the left side of this piece is empty. It could be because Twilight is on the right and it seems like she should be balanced somehow. But I like this overall.
I've seen a lot of works that have something to do with 'This Day Aria', but yours is by far the best looking one I've seen to this point. I'll be shocked if you do one when everypony is completely oblivious to Evil Cadence aka Chrysalis's singing at the alter. I hope you do equally well on the rest of your project. Good luck.
Oh, great work! You really nailed Cadance there - that's just the right mixture of disheveled despair and agitation. Coupled with Twily's grim determination, you've really got that scene's mood down pat.