Nice work. I like the dragon especially. Though... the overly long spire from underneath the city kind of throws it off, doesn't look very solid, I feel it's a string or a light switch and want to pull it =)
This is great, although the solid coloring is a surprise to me. Did you use any reference for the dragon rider in the foreground? The perspective effect on that is great.
Mabe if you pulled the chain, all the light would go off. It's kinda like a ground line, but it does look weird. Plus I'm experimenting with weird styles, I can never keep track of one. And no, there was no reference.
drawn in 19 min
drawn in 33 min
drawn in 15 min
edit: Impressive!