Hi Moses, thanks for your presentation. Please keep in mind, some of your speaker notes seem long (your acknowledgements, Introduction, and background slides for example), you do not want to spend to much time on each slide. Recommended no more than 1-2 minutes on each 🙂

You are missing a very brief slide on the Nature/Significance of the Dissertation. 

A few more graphics/graphs/tables may provide better visual aids to help with your defense (though these are not necessary).