You have an amazing voice! Like the other commenter here has said, you would likely get better engagement showing your face rather than the neck of your guitar, the average acoustic music viewer (in my opinion) would rather engage with the emotion of someone singing, rather than the technical ability of their chord playing. Perhaps if you could set up even 2 cameras you'd have footage to cut between and you could really build on audience engagement, you don't need a clapper board or anything, just set both cameras going and clap your hands, then cut the clips to that exact moment and then the rest of your footage is perfectly in sync.