It is possible to hold on to the essence in a scene by letting go of some of the optional information. Often subtle details can be simplified or eliminated altogether to give emphasis to the essential aspects .
The shapes of the clouds and the water are given emphasis by simplifying them. Complex contours are reduced to hard-edged geometry. The drama is increased by exaggerating value contrast and color temperature. The spooky graveyard mood is definitely there.
Sometimes reducing the complexity of a scene is a worthy goal in itself just for the pleasure of seeing how simply the content can be stated.
The trees in the painting are more symbolic than realistic. They are brushstrokes more than they are trees, which serves to enlist the viewer as a participant in the interpretation.
See what the following images suggest to you. Are there aspects you might exaggerate to enhance a feeling? Are there features you could simplify, or some that you could let go of to make the ones you keep more important?