If there's anything you want, anything at all…
come to me.
I'll be your guardian angel.
(lyrics from Guardian Angel by Juno Reactor)

So who's guarding who? I don't know either. They're probably guarding each other.
Basic pose is originally from 1x17 "Stare Master", although Angel and Fluttershy are from separate scenes: Angel is from 7:02, Fluttershy from 13:48. Pillow is based on 2x20 "It's About Time", though these stock pillows appear in several episodes.

Statistics:
- 34 layers used.
- 24 distinct shadows in there.
- Time: Too much, as usual.