So here is my input and please keep in mind everyone has different tastes in what they watch. And over all I think you did a great job. Keep it up.
1: Remove dead air, as in times when you are not talking. Unless you are showing something interesting people tend to click off.
2: Pretend you are talking to a friend and not recording a video. Will give a more welcoming tone to your voice. (Takes Practice)
3: The audio is interesting, I can hear you clear but there is a lot of background noise. Maybe get a deadcat for your mic if you don't have one.
4: Do not do voice overs while on the bike. I may be wrong but the start of the video sounded like a voice over. People may disagree but as soon as I hear voice over I click off
5: This may be a bit more advance but start your videos with a hook. You only have about 10sec to make someone keep watching your video. You have to use that time to get them to keep watching. This is very hard to do and I struggle with it. But something to work towards.