Drawing the Pyramids of Egypt Using Affinity Designer

The Pyramid of Giza is among the Seven Wonders of the World. However, the Pharaohs are several generations of dynastic inbreeding. Talk about how Tutankhamun died at around 18-19 years of age, because of his severe defects! Anyway, here's the pyramid drawings. 

This is a drawing that could be easily done on Affinity Photo.

However, Affinity Designer could handle isometric better than Affinity Photo. This is my attempt at drawing the pyramids.