I have completed the tileset design for the Dusk Caverns! The Dusk Caverns are a darkened area, only lit by a few glowing stalagmites. This tileset ended up being a little trickier to complete that I originally expected; sometimes the fewer colours and elements that are involved the more refined each individual element must be.
Here is a quick look at the area I used to test out the tileset. I’m still on the fence whether or not I should use the glowing doors (it may not even be necessary), but overall I am fairly pleased with the results.