Thanks for the suggestions everyone! I realize there's way too much soil in there haha. Before the tank had been home to some hermit crabs my niece surrendered to me and I had a big slope and branches so they had more floor space.
I decided I'm gonna go with Unzan stone. But in the mean time I can have a little fun and do Seiryu scapes like this:
Note: this is just an exercise in scaping and visualization. I gave myself 15 random rocks and 10 minutes to make something cool. I did take out a lot of substrate. I kind of like it but I still definitely want the Unzan lol