Since everybody comments Trixie and her well-deserved wings, I'd go with something different and ask: where is she, exactly? Cause for me it looks as if she just broke a window in Canterlot Castle and now dives down on Twilight! Great art of the best pony!
"This 'anything you can do, I can do better' thing is getting really old Trixie." "Trixie doesn't care! Trixie knows you're jealous Sparkle!" "Does Trixie also know that I now have the power and authority to send her to the moon?"