Imagining what's not there

This is gessobord with a warm toned oil ground. I thought that colour might add vibrancy to my palette of fairly muted tones. My plan is for this to be an urban scape that takes the viewer on an imaginary flight. (magic carpet anyone?)  I begin with an actual photo I took a few years back, which I dug out of my resource files last week; you can see it on the upper right.  I liked the shapes of the steeple and the skyline, but I don't like the grey sky, bare trees and I dont want a copy in paint(boring). My goal is to take it a step or two further. I sketched my idea adding a background that I have imagined(basically my idea of what the cataraqui river might look like if I was flying over it).  I want the focus to be how the urban scape relates to the landscape in my mind.   I dont have a real plan other than this, no other images to work from...so I am tapping how I think it might look (imagining).  It's play in a way, but also a building of shapes and tones in an abstract manner.  One brush only for establishing these elements, because I want to keep it loose as possible at this stage.