I was playing with Mypaint, drawing clouds with the brushes and it ended up with something completely unexpected.
I didn't have so many references (except for the flying object) so maybe the colors/light/perspective are a little bit weird...
The concept is not so original, for instance : [link]
Anyway I really like the association "waterfall+big fantasy-like city+steampunkish flying object ". I was also inspired by [link]
Tools: Mypaint+Wacom tablet