While it does look aesthetically appeasing its functionality does not score highly. Firt off, the height of the cage doesn't matter, but isn't a necessary as leos are terrestrial. I can almost gaurantee you will never see them climbing that branch (unless you place them there). Secondly, that substrate looks like a recipe for impaction. It's ultimately your choice, they might be fine on it, or you could feed them in a seperate container, but why even take the chance? Thirdly, the hides are nice, but for just a couple of leos it is too big of an environment. Food items will be lost and your gecko will take longer to become comfortable with his or her surroundings.
Believe me, I know it is tempting and fun to create a habitat like that. Cage design is one of the most fascinating parts of this hobby, but ultimately your animal's well-being has to be the number one priority, and with a cage like that I don't think it was. Your leos would probably (key word probably) do better in a simple paper towel, water bowl, multiple hide setup. I'm not trying to be a jerk, I just hope that your interests are in order here.