Sing Choirs of Angels!
The Angel works well both as a freestanding figure and as a pop-up greetings card, and these diagrams show both alternatives. If you decide to make a greetings card, don’t flatten the Angel’s head too much when folding the card in half: you can add a little packing inside the head so that it keeps some volume.
Here is a video tutorial showing the folding method as an alternative to diagrams. (Scroll through to 16.00 of this recording to go straight to the tutorial.)