That's really nice looking. Mind telling us what's in it (material wise) and how it was built?
I don't have much info for critters, I kept a newt (firebelly, i think?) for about a year or so in a 10g paludarium.
Probably want something primarily aquatic, but comes out once in a while - and you'll probably need some sort of cover, whether it's screen, plastic, glass. almost anything with terrestrial capability can likely crawl out of there.