If you start your own post in the enclosures and supplies thread I'm sure more people will be able to give you advice

it looks pretty good except he needs more horizontal walkways, towards the top and middle, and more foliage in the middle. Also chameleons don't drink from a water bowl, they need to see moving water or drink the dew of leaves. Having a dripper will stimulate this. Water falls are bad unless you want to clean them everyday, then I'm sure they are fine. Also what type of Cham do you have?