KH Angel Harp - Need help

[Tonic]

Yeah, it's not really good, but nobody sprited my favourite Heartless yet, so I decided to do it myself.

I could use help with the wings, every attempt I do doesn't evfen look the slightest bit like a wing.

I'm going to reshade the lower parts soon, they are the oldest, and I think now you can kinda tell that some parts were made a lot later.