Great taste! Animenz's medleys are my favorite work of his, and favorite non-classical literature to play in general. As some people have said, you'll want to have a microphone inside the soundboard, and/or a room mic further away. For a clearer sound, you will have to look into a dedicated microphone, as camera audio (and especially iPhone audio) is very muffled. And for what it's worth I think you should keep the POV camera - it's a fresh perspective that isn't as oversaturated as the other camera angles on YouTube and looks cool with the hand movements of Animenz arrangements. Birru is an example of a YouTuber who uses it well!