You are painting portraits of angels. You want their wings to be anatomically correct, and ornithologically correct. What species do you use as models?
Gentle doves? Majestic eagles? Swift falcons?
Personally, I think seagulls and terns have beautiful wings.
I think owl wings are rather ugly. (You could argue that they would be perfect for a guardian angel, since they are built for silent stalking. [Although that seems to me more pedantic than artistic. 
])
It depends on what angel I’m painting. Gabriel probably has dove wings, but Michael is totally a bird of prey.
Parakeet. They look fine and are available.
I dunno, something just seems *wrong *about an angel with parakeet wings, even if sized appropriately. I’d go with eagle wings.
Egrets have beautiful wings that would serve as good models.
A swan, maybe. Or a heron.
Here’s a link to another place where the question was asked.
My opinion would be that swan wings are close to optimum. Goose wings are also pretty good.
Heron wings are too distinctive, I think. They transition from too solid to too fringed. They don’t have the – I don’t know what – the “draped” look that Swan wings have.
That said, some of the bits in that pic of a swan look kinda grotty. So, in addition to everything else, Angels’ wings need to be idealized, just as the human aspects of their bodies must be. They are paragons, ideals, and beyond mortal flaws.
R.A. Lafferty, “Among the Hairy Earthmen.”
Swan wings seem the norm, but I’m thinking maybe Egret:
Not swan wings. Dove. Google dove wings and you’ll see they are instantly recognizable as the iconic angel wings.
Metatron: parrot, or myna bird.
Angel of Death: My first thought was vulture, but perhaps a raptor would be more appropriate?
