Really new to building and want to try and fix up my old world. What tips do you guys have for these houses/in general for me? :)

Well …

They all look quite similar. So I would suggest/recommend to make every one of them unique by trying different building styles, different block pallets, different ways of texturing, and the most important part: connecting them with nature, so that they dont just stick out of the ground like that. And also very important: give the houses purposes.