When you shoot, consider “filling the frame”.

This is one of the easiest ways of simplifying. In the picture here, for instance, I used this:

I used these devices:

• Filling the frame. Yes, you can cut off bits.
• Selective focus. This helps “tell the story” and generate interest.
• The Rule of Thirds. Off-centre composition creates a much more pleasant composition.

A little goes a long way, when these simple compositional rules are concerned.