I rather like the use of the upside Furno head. I’ve always wondered what it would look like on a MOC, and here it appears to be used quite well. The rest of the build is neat as well.
Oh by the way I forget to mention, in the story, the heroes used the cannon of piracy on him to take his energy, and now he takes 5% to beat all villains of S2003 and W2006
But they need a more wingy vibe you know? My suggestion is to look at wings in nature (like on bats or birds) and try and emulate those. All in all I like the MOC though, I just think the wings could be improved a little.