Thanks! I honestly can't put in much more detail because I don't have a clue how to design and paint buildings (it's on my list of things to learn), so for now I'm getting away with block shapes that can be interpreted as rocks or buildings.
I'm very glad the person standing atop is clearly understood. My biggest fear was that the tiny spec of a person would be lost among the rest of what's going on, especially since the dark silhouette is't all that different from the darker colours nearby. Thus the red cape and heavy light for constrast.
As for the clarity of thr scene as a whole, a friend of mine really loved the look of it and wanted it extended so that the image could fit across both his monitors. I figured it would be fun, since then it could fit across both of mine as well, so now I'll be able to add the context for the pink colours in the other half. Showing that should tie it all together a little better.
Thanks for your commentary!