Thank you, I'm really glad you like it.
The side-view doors are something I struggle with for some time already. They just never look much like doors. Obviously I'll have to draw them sooner or later but I keep postponing.
Otherwise - all of what you've mentioned is somewhere in my todo-list already*. It's just difficult to find enough time. In any case I'll have some update this month (No promises about what it'll be though).
[*] except ceiling - I don't know what you mean - game dungeons have no ceiling - I'm intrigued - can you elaborate?