That is some great work. I like the cohesive theme you have, and the sheer size of the models you are building is an epic undertaking. With the number of finished (or almost finished) projects you've shared it's obvious you are up to the task.
Excellent work. Your combination of scratchbuild and prefab is inspiring.
You may want to consider some shading, like moss / mold / whatever alien stuff would grow near the base of the buildings. You can also try different shading for the stones. Here's an
example. Not necessary for sure, but an idea to consider.
Subbed and looking forward to more.