Medieval Environment 3D Scene- Alchemist's House

Once long ago there was a time when I decided to make at least one model everyday. And although I eventually gave up on the idea sometimes I still accumulate a lot of thematic models.
That's basically how I made this simple scene - just got too much of rural medieval things to keep them all separated in files.
I think I should try selling them on stock sites as props maybe, but that would mean so much of optimizing my head hurts just from the thought.