Landscape photography can be a sneakily difficult genre to master, as the leap from good to great is much more difficult to navigate than it might seem upon inspection of successful images. This great video examines seven lessons learned about landscape photography.
Coming to you from Andy Mumford, this great video talks about seven lessons he's learned about landscape photography over the years. Personally, I think one of the most important is the idea of the keeper rate and having patience. Unlike many other genres, you don't have control over the light when shooting landscapes, and a lot of the time, you'll have spent hours hiking to a beautiful location only for the light to simply not cooperate, leaving you with lackluster results. It's important to embrace and accept this aspect of the genre and stay persistent in pursuing images you know are worthwhile. Investing time in doing your homework when it comes to scouting locations, determining the way light behaves at those spots, and watching the weather will do a lot to increase your chances of coming home with some keepers.
If you really want to dive into landscape photography, check out "Photographing The World 1: Landscape Photography and Post-Processing with Elia Locardi."