First things first, do not put "Introduction" or "Motivation" on that outline, it conveys 0 (zero, null, cero) information. The same thing goes for "Conclusions". Another thing specially for those LaTeX/Beamer users, subsubsection (aka nested bullet points) in the outline, are you kidding me? You are killing your audience right at the start of your presentation. Who's going to remember that?
The first example is a straight enumeration, to give a clue of the images I masks the section images with the numbers. After I finished it, I didn't like it. The images don't pop-up, there is a nuance though, that I thought could create a sense of mystery. The color scheme is also a bit of a mess. It looked as if I couldn't make out my mind. But of a bit of patience and tinkering the appropriate color scheme can be found.
Finally, what if I want to go for only squares and there are only 3 real sections? This slides is inspired (shall I say stolen) from the work of Emiland de Cubber. Maximize images, minimize words.
Image credits (all images taken from Wiki Commons):
- Bullseye photo by Christian Gidlöf licensed under GNU Free Documentation License
- Volcano photo by Nasa licensed under CC 2.0 Attribution-Share Alike
- NYC photo by Paulo Barcellos Jr. licensed under CC 2.0 Attribution-Share Alike
- Woman photo by Luca Galuzzi licensed under CC 2.5 Attribution-Share Alike