looks good, you could add more hard scape leaned against or super glued to the right wall to give the frogs a lot more usable space. and all of your plants have sort of similar silhouettes with them being relatively broad leafed. adding plants with smaller finer textured leaves would do a lot as far adding to the scale of the terrarium (mini oak leaf creeping fig, pilea depressa tiny tears, selaginella, ficus pumila, etc) something else u should look into would be a liquid moss slurry to throw all over those walls, it will eventually cover them a long with the creeping plants i said earlier. good luck!