The purpose of the talk states why the audience should care. Make sure you can state your purpose and key take away in a few sentences.
Your audience have a limited attention span, so keep your talk focused and to the point. We nearly always add clutter when we prepare presentations, so make sure to remove the clutter in the final stages of preparation.
We are easily distracted so you need a plan for how you will keep your audience engaged. There are many techniques you can use for this: questions, active body language, pauses, anecdotes.
Images are good supporters of your words. A good image can anker your words in your audience’s minds and make your presentation memorable. Text is bad at this. Limit the situations where you ask your audience to read and listen at the same time.
Are all text and graphics easily readable and understandable for someone at the back of the room with poor eye sight? It not, go bigger! Less is more. Bigger is better.