A really wonderful picture. I like the floting rocks around the city itself and your style of the painting. The world behind the city looks like it is made of glass and it is not a real world. Was this what you wanted to? But very nice picture.
Not sure it was my original intention but I do recall thinking that it did have that look about it as it progressed, so I'm pleased you see it that way as I think it adds an extra level of weirdness/wonderment to the environment.