A good rule of thumb for making presentations is pictures are better than text. We had to do a presentation at the Concrete Canoe regional competition and our presentation was one of the best because we had way more pictures than text and we talked about the pictures and any graphs instead of making the people read what we're explaining to them. If a picture can say 1000 words, don't use 1000 words, use the damn picture.
PS - Yes, you read that right. Concrete Canoe. We make canoes out of concrete and then we race them. We're looking to place top 5 in Nationals this year.