1. START WITH A GOOD LANDSCAPE PHOTO
It is very important to understand the goal of post-processing landscape photography before you get started.
You’re trying to enhance your photography. You are not trying to fix your photography.
In other words, you have to start with a good quality photograph – something that is interesting, with good light, atmosphere and composition that’s sharp and clean. It also really helps if you’re working from a RAW file.
If you want to know what I mean, these two articles might really help:
Once you have a good quality landscape photo to work with, and you have your image imported into Lightroom – its time to start editing.