I've just updated the HM3 Alpha with the BackplaneWings set. Enjoy! Holler in comments if there's a wing of some sort you were hoping to see but don't, or if you see a bug of some kind.
Also, I updated BackplaneStandard with the mechanical arm separated out into two pieces, so you can have one on the bottom layer and the other on the top, making it look seamless and yet overlapping the main character for a two-level effect with a little path running down the middle.
