Sketch: PT "I'll Cover You"

Just a bit of Princess Tutu fanart I drew last night. As you can guess, it was inspired by the song "I'll Cover You" from RENT. I just love that song, and it's my favorite from the play. I've wanted to draw something to go with it, and something to it with Ahiru and Fakir as well, for a while (or at least do a few LJ icons). For a messy sketch, I think it turned out well. Opinions and advice are welcome. I'm unsure if I'll clean this up and polish it or not.