After having your sheet prepared, start painting some basic lines. Define the horizon and depth to limit the space of the landscape.

With only a wash start painting, leaving the whites of the paper come out, not covering the entire sheet.

Start giving it a bright, soft colour to start to make it appear coloured, to define the most important aspects of the landscape.

Draw your panorama and add houses to the landscape. Drawing with black in watercolour is not very nice to see the lines of a pencil.

This is the final result after all dried, and I took off the crepe tape.