New suggestions: More fantasy mineral heavy overworld lands like purple stalactite map, blue when mixed with ice, and green stalactite map 

Also, greek like temples made with sand and gold,  and lahmassus (mesopotamian giant scultures), and giant aqueduct bridges and big bridges, in three styles: sand, wood and stone. And more titans, specially for jungle and swarm biome also casual titan silhouettes made of forest 

I am heavy_run in reddit, titans are mangrooves looking amazing. I am a large lover of desert biome and I can see some things added: Papyrus plants around rivers