Okay the existing planned feature for the Den Cave art is that they have skins.

Meaning, let's say there's decors for your default cave like rocks, moss, maybe bats.

Skin is called default.
Let's say you decide to switch skin to "Water Cave" - the background changes to a blue tinted cave with a pool of water, and all the decor is matching that skin, placement and colours.

This is a thread to suggest the skins.
Remember though, these take time to make so there won't be a new skin coming out every week.

Example concepts that I had in mind:
- Sandstone cave with an opening LINK
- Water cave link
- Rocky Hills link

and so on and so on.

You can suggest a skin (theme) + decors in this thread.
If there's a skin-specific decor such as fish in the water I could call it "Special 1" and it'd appear as fish in water cave, and quails in rocky hills, etc.

There will be a wardrobe for caves.

User suggestion list:
Mountains - possibly a view from within the cave
Ice cave with frozen things in walls when decorating
Bioluminescent caves
Lava tunnel
Crystal Caverns like in Mexico!
Ancient Human Cave
Borean cave
Rocky Bridge
Tropical Crevass
Ocean cave

Note: Not so sure about the temple. Would have to research enough to not offend any culture :l