What could go in this Terrarium?

Hi guys! I have recently built this rad terrarium. I’m planning on adding some isopods to it. That was the original plan but I am now wondering if someone else would also like to live here!

Not sure what could be housed here, considering a few different spiders but wondered about a praying mantis as well. I just worry about ventilation and humidity since I need to water the plants.

Anyone have suggestions? If it won’t work I’ll probably keep it as is then. Not planning on changing it expect making space by removing plants/building a mesh top.

Thanks!