Well you already know about the intonation which sounded good during a few sections (at least to me they did)  So if I might suggest.  Loosen up the wrist on your bow hand a bit.  It kinda looks like you're using your whole arm for each bow stroke as opposed to, from the elbow down.  I'm no pro by any stretch of the imagination but I think that your bow control will improve and the "screeching" on some of the string would disappear.

Still,  Awesome job!  I'm not sure I could play anything that fast I'm certain that when my instrument arrives in the mail I'm gonna be back to searching for the fingering for twinkle twinkle Like I occasionally do when typing

Lookin forward to an "update" video in the near future to mark you're improvements.

-Dennis