Any ideas for what to add into this level?

I’m a beginner-intermediate game developer, and I got this level that I’m trying to make a medieval village and multiple towns(think of Witcher 3 but not as good :D) and I’m trying to get new stuff for this level (buy things off the marketplace to help me) and I wanted suggestions!
I want to start making my own assets and many other models but I’m only 15 trying to learn stuff I hardly understand :}