- Dare to use fonts beyond the standard ones (but make sure that it does not create problems)
- Select images with lots of white space
- Match image style, image color, font, font color on the same page
- Maintain a consistent graphical styles across slides
- Look at the people-flat-on-the-ground sequence in the smoke presentation to see how you can achieve cinematic effects in PowerPoint
Remember, these presentations are made for SlideShare/online viewing. In other contexts the style used would be somewhat different.