I loved doing this in art class. Art With Mr. E: Line Design w/Shading - Grade Very cool, fun art shading project from Art With Mr. E. he's an elementary art specialist. Try this with your kids (but I think grown ups would enjoy this too).
One of the few angels I could find from behind. I think this is more detailed than I need. But I like her wings pointing down, she is wearing a dress and her hair is nice here. The other one I like, her face is in profile but I think I like this better. Just her hair, parted over her shoulders.