I started wanting to make a cool angel based on some of the awesome angel wing effect of Tyreal from Diablo II. I built upon my previous Lithophane instructable but I just couldn't get a christmassy angel design from it so I just ended up making a lithophane of Tyreal which came out rather well. From here the design split into a better angel shape and a much more christmassy lithophane.
I'm fortunate enough to own a laser cutter, paid for by sales of my iron man arc reactor (thank you instructables community) So it would have been silly not to use it for all the hard work but this can still be cut using a scalpel and some patience. I recommend getting a good cutting matt and a new scalpel blade before starting.
Step 1: Tyreal Design
I roughly set out the 3 different layers. The whitest layer should be the wings and the flaming sword, anything that is pure white and made of light. The robes hands and smaller wings should be the next lightest colour. The armour should be darker still and everything else should be left as black (or as dark as possible with 4 layers of paper)
Once all the parts have been drawn round they should be copied and grouped into the appropriate layers. The white parts are required to be cut into all 3 parts, the robes on 2/3 sheets etc. I duplicated the whole image 3 times and deleted parts from each layer before combining the remaining parts to form the cut outlines.
Separate vector parts for each layer can be found in the svg.