I redid the dungeons and added new ones. They are now more detailed compared to the old one. I was also able to add more variety to the floors and walls, so each room looks significantly different. On the screenshot we have (from top left to bottom right) plains, desert valley, highland forest, and snow.
Here are some of the comparison screenshots:
New Forest:
Old Desert Valley (New one is on the main screenshot):
And here are other screenshots: