Mettaton EX, darling.
Like the one I did of Papyrus, I generally tried to give it the proportions and general look of the game sprites, but still did my own spin on it. I did use some other fan art for inspiration with some of the mechanical details.
I didn't realize until towards the end that he ended up looking a bit chibi. Hmm, a chibi bishonen mech--definitely sounds like something an anime fan would invent =P
I kind of fell in love with my version of his face--I think I might have to do a headshot one of these days =P