Since the light is coming from two opposite places with equal intensity, I felt a little thrown off. But it gives off this feeling of not having enough light but having enough light to see. I have to applaud you on the scenery, because it really does match with the changelings. We've never seen the changeling hives (I don't think) so I know all of the background is coming from you.
The coolest part of this piece is how the green light makes everything green being hit by it glow. I like the idea of all the green on her body glowing, even her makeup.
Wait, is that Derpy? She looks suprisingly happy. Does she not care at all she has holes in her hooves and now has to feed of love? I'm sure it's fine thought, this is Derpy after all so mabey it's just a spell for one day and Derpy just wants to know what it's like to....... *looks closer at the art work and sees Twilights Cutie mark* OH SHIT! DONT TELL ME FLUTTERSHY IS CAPTURED TWO!
Amazing work here First, I am in awe with my queen's posture, as it shows off so much of her unparalleled beauty Next, what stands out for me is the way you drew her mane and tail, and how both seem to swirl around her so elegantly ^^ Apart from that, fine job on all of her other beautiful features, such as her elegant wings; marvelous eyes; etc.
As for the dialouge, hm...
"Humble servant. Is my love bath ready yet? I must bathe, if I am to retain my queenly beauty."