Right on! Looks like a cool place to visit!
Very nice environment. That would be exciting news if you were going to tell a story in this world. The eye moves through this very comfortably, exploring pipes and other bits of construction.The courtyard space might profit a little experiment in photoshop. That space right above the foreground dragon head. Make a layer with the fountain and the coach separate and juggle them aboput and see if you fill the space more pleasingly. I see the fountain down lower on the page and the coach partially obscured placed behind it.
Fantastic! Creep-a-rific! Halloween must put you in the mood to do Creeple stories.
I've been working on the story for a while now... a bunch of PopCap artists are doing an anthology together called Monsterpedia... we did one last year but I didn't participate in that one. If you want a taste of last year's book, go here: http://davidryanpaul.storenvy.com/products/54614-the-amazingly-true-tails-from-the-illustrated-monsterpediaMore to come!