Remove the NPCs as well. They aren't interesting in terms of anatomy, or style. The cave you have is okay, but there's a lot of mistakes. Like the stalactites and stalagmites should all be pointing straight up and down, as they form by water carrying minerals depositing them as they drip straight down over a very long…
Here's the final model of the Blacksmith NPC game character. Made with Zbrush, Blender, Marvelous Designer and Substance Painter. Rendered in Eevee. It has 55000 poly and 4k textures for the skin and the cloth.