I often find it useful to consider landscape images as comprising three areas, foreground, middle-ground and background. While our human perception tends to focus more on foreground details and objects in our near vicinity, the camera makes no such distinctions. Foreground rocks that the photographer could reach out and touch while at the scene are rendered with the same presence as distant clouds in the final image. When visualising, I think it pays to try to see background and foreground details with equal importance.
For me, pre-visualisation is a more meditative loose gathering of ideas, an indistinct dreamlike possibility, a process occurring before we are in the presence of our subject. Visualisation is a more concrete mental image formed while on location and able to view our intended scene. Visualisation is all about seeing like a camera, an imaginative photographic translation of the real world before us into a detailed final result.
For those of us with a predilection for wild places, it can be rewarding and refreshing to turn our attention to the urban landscape. The majority of our audience will have an innate perspective of the metropolitan milieu, buildings and their component parts have an expected size and shape. Our artistic honesty is therefore unmistakably apparent, but a consequence of this is that ambiguity can be all the more powerful.