In many of my investor presentations I mix slide design styles.
  • In the beginning, big images to catch the attention of the investor and make her feel the pain that you are trying to solve. These slides are good enough to put up in a big keynote address.
  • Later on, more dense slides follow with details of the technical architecture, the financials and the team experience. These work in a small conference room, but definitely not on a large stage.
The slide design is not completely consistent, but I find it works well for me.