Great that there is no background noise. Just be aware that simply watching a slide show with words can be boring. What other ways can you present this? Are there more exciting visual cues that would convey your message. Plus if people are watching on the mobile App they will find it very difficult to read all the text on your slides. It would be good to meet you in person - even for a few seconds so we can bond with you.
Good luck with your course.
Spiritual Guide, Shaman, Priestess of the Blue Rose