Each example - a short text and a couple of pictures, selected on the basis of "worse / better." Perhaps some of these recommendations will seem obvious - but stick to them is not as easy as it may seem. Nevertheless, I advise you to do it as much as possible - your shots will certainly become more expressive.
Shooting evening landscape: remove after 20 minutes after sunset
The sun in the frame: remove the long lens
Portrait: Use a telephoto lens or move the zoom from wide angle to telephoto
Travel: add to the landscape effect
Shooting leaves: Limit the palette, select the main