Taco also
So I have no background added in the sense of "it's just a photo". Everything is either a window or climbable.
Taco also can do that... When the curtains behind the enclosure are closed for too long. We close them at night as the street lights and the lights from the harbor are really bright. I get up early, around 5am, but in case I'm not at home and traveling, it's my husband - and he often sleeps in (he's working in another time zone). 8am and curtains closed, Taco gets upset.
@BPSabelhaus
What about adding a climbable background structure like I have it in Taco's tank?
Not that difficult to build IMHO, materials aren't that expensive and it looks to me you like to build and shape things. Just an idea, as I could guess both you and your dragon would enjoy that