This is built off of two Apo renders. The first is a standard dragon curve. The second is a tweaked dragon curve that I can best describe as "dragon with frills."
At first, I was trying to tile the basic dragon curve in Apo. This wasn't really working, although you can see ~guagapunyaimel
's cool attempt here:
So I rendered it and tiled it by hand in Paint Shop Pro.
Then, I got rid of one of the tiles so that there was a dragon-curved-shaped hole in my tesselation. I filled this hole using the "dragon with frills" render.
A few color tweaks, a crop, and a sharpen later, and this was the final product!