Since youre asking about your intro, I'll narrow my review to only dicuss your intro!!
Your hook? Was inexistant, but honestly its ok! The "Ok so" start was a bit weaker than a solid hook could have been, but it wasnt detracting. A solid middle ground Id argue. You could make a hook, but its ok right now as is!!
The intro-intro part (like the subatnce of your intro) was edited well, there werent any major issues outside of the flow and length. Your intro was 1 minute 30 ish seconds long! Wayyy too long!! You make up for it with amazing editing, and it isnt so bad that it could turn a viewer away, but ti gets a bit boring, and that risks triggering the "pls just start the video!" thoughts in the viewer