Close to a month ago, I signed up for The Ukulele Way, the online course with James Hill as the primary instructor in the videos. On this website, I've basically started from the very beginning: Book 1. There are about six books, each containing about 9 or so lessons and I've reached the end of Book 1, the final lesson where we play the song "The Roving Gambler". I've never heard of this song prior to this lesson so I relied not only on listening as James played the song but relied on reading the sheet music provided.
I recorded a video of me playing the song and would like some feedback on my overall technique. To set the right expectations, I've only been seriously practicing for about a month and a half to two months: so don't expect too much. But I'd like to know if there's anything obvious that I should be fixing. For example, I was told (at my most recent private lesson) that I was alternating between my thumb and index finger while playing scales and that I should, instead, stick to just the thumb. So, advice like that.