This was a rather quick drawing I did off a whim. Kyupid is made of a rubber/latex-like material, and encompasses certain aspects of the kelpie. He has two rubber tentacles that can retract into his body at will, but he typically uses them to trap someone on his back so he can lead them far from civilization. He doesn't eat like most other horses (well, horse demon thingies in his case), and gets energy from absorbing other life forms. Kyupid doesn't always do this to the people he catches, and will often keep them for quite a long time against their will just for him to tell his stories to. The only way to get off is for him to allow it.
Again, thanks for all the support. I love reading the comments I get and the the favs are awesome. You guys rock.
Also, here's a second, updated, picture of him: [link]