How is this video? Does it look pleasing?
One thing I would suggest looking in to for you would be thumbnails this thumbnail is alright but won't attract much attention as it doesn't stand out
Pros of having a good thumbnail:
Visibility/Appeal = More Views
=More Subs
=Bigger and better community
Things to make sure you have in your thumbnail:
Images that stand out and relate to the video
Small amounts of text relating to the video (optional depending on how clear the rest of your thumbnail is)
Bright colours - Dark colours DO NOT stand out and won't gain as much attention as a nice bright relevant thumbnail will
That's just some small advice I have for thumbnails