First, I put rocks in the bottom for drainage.
Then, I covered it with potting soil and put in my various finds. I made sure to cover the entire surface with moss.
It's amazing how many beautiful types of moss there are. I was only able to include a small selection of the many types that I found.
Since moss is found in damp conditions, I've been spraying the mini garden with water twice a day. The plants still look happy.
Now I have my own little forest living in my apartment!