VTT Map Ideas for January Pt.2

Since I managed to get all of the basic caves done in 2019 - this year I'm planning on spending several months (maybe the entire year) creating a few more 'feature caverns' and/or larger cave sections (just to try and break up the 'modular look').

So with that in mind - feel free to post any requests/suggestions in the comments below :)

(note that I have a few ideas already, and a few things sketched out - but more ideas never hurt :) ).