To make your picture work, you will need three clear spaces in it: the foreground, down at the front, the midground in the middle distance, and the background in the deep background space of the picture.
In this video, I look at some photos and show you why they would make good or bad compositions for a picture - why some might be much more difficult than others.
Then I show you what I mean with a cartoon-simple landscape drawn in Procreate.