Paladarium Build Idea, Artistic Rendition

I really want an L shaped paladarium that has vertical room for an arboreal species, a small beach area for a semi-aquatic species, and maybe enough horizontal space for a third ground dwelling species. Not actually sure how Id build this though, does anyone have any ideas? Also ideas for species to put in it would be appreciated too. I also listed some rough measurements for how big Id like it to be. Could go smaller, dont think I could go much bigger though, and excuse my artistic ability, or lack there of, but I think this gets the idea across.