Hello! Here is one of my newest medieval themed builds, a medieval outpost in the woods. It contains around 2000 pieces, and is my favorite nature build I’ve made so far. It has a castle themed building with a small moat, a bridge, and two autumn colored trees with olive green grass detailing.
The techniques I used were stacking, SNOT, and complex yet buildable hinges for the trees. This could easily be made into a set with its techniques. Castle is a classic LEGO theme and would make a great LEGO Ideas set, especially one with so much nature. I hope you agree!