A few more ideas: mills and sunflowers, bigger ruins, basecamp of war with banners (rich and spartan versions),  merchant newtown or merchant league building or merchant stop for overworld with money and balance icons maybe,? Isolated Bard Guid + Inn house on the wilderness. Pyramydz floarting pyramyd, stonehenge obelisk with glowings and flying obelysk alone.

I have more ideas: screaming skull shapped houses and towns of barbarian-orcs, screaming skull shapped black and white trees without folige, dragon skeleton ( a classic), glowy forest of wonders and feys (feiry forest with glow effects of avatar, town charmed by glow and fairies, castle charmed by glow of fairies, prairie of glows and glowing sparks in waterfall, zeppelin port/steampunk town. 

This set is wonderful but still need some things, I have some ideas: overworld secuois and tree house (more elfic), prehistoric jungle with giant trees(perfect for zone with special dangers), swarm with mangrooves (very cool setting with a giant lotus and a giant circle of mushroooms for overworld), giant maze both in white marble, stone and green. Damned castle with spiral twisted towers. Thats it, thanks!

Thank you, great job