Wow, this is pretty imaginative. I like the feel of the artwork in the foreground; it gives you a feeling of adventure and happiness. You can also make out plenty of detail in the background, but it feels like the background kind of drags the rest of the painting down when you compare the detail of the foreground to the background (especially the land mass that the city sits on; it just looks like a bunch of brush strokes). I also like the pinkish/purple coloring. It makes the artwork stand out more than just black and white.
You look forward to seeing more from you. Good luck!