And the atlas is done. I went for a sort of world-tree/Yggdrasil motif for the cover, rather than text. It was almost a Celtic knotwork tree until I realised that I don't hate myself quite that much. Also, the reason #5 looks good is because I've seen it before. I have no idea where, but I am 98% certain it already exists.
EDIT: Figured out where it was from. Apparently I was channeling Ursula Vernon.