Improving Youtube presentation

I made an approx. 12.5 mins Youtube video presenting a Powerpoint presentation: [login to view URL] It is rather low quality both on sound and in English grammar. I would like that you should make an enjoyable quality video out of it. The ppt file is also available. I need native English speaker and edited text + presenting the ppt. If you add further tricks to improve the experience (music, etc.) that's even better. PS: If this project works well and we can reach good feed-back on quality there are 2 + 10 more videos in my channel to be edited.