A ref sheet of Dusk's angel forms.

Here are a few more pieces of reference:

New Angel: Just Dusk's normal self. No markings nor World rings.

Half Angel: Dusk's second state with 3 of the World rings in hand(except the Angelic ring). With markings only.

Full Angel: Dusk's third state with all 4 World Rings in hand. With both markings and World rings.

Hope it's all good enough. I know I kinda screwed up on the left and right hand, though. -_-;

Dusk is (c) to me