One of the easiest and most impactful ways to instantly improve your landscape photographs is to get the camera low. I mean super low. I'll give you an example:
In this photo of half-dome which I took in late October, my camera was literally an inch away from the water. Why?
- it makes my foreground object (in this case the leafy log) much larger and prominent in the frame
- allows me to establish a relationship between the foreground and background
- the motion in the water creates a powerful leading line to the mountain in the distance.