The video shows an talented athletic player. Per an ACC head coach back in August: keep the video to 2 minutes max and he welcomes workout video. In the course of developing a relationship with the college coaching staff you'll likely send several videos: offensively, defensively, workout, and some game video.
As an IF you should be showing views from SS, a few pic's from diff angles, then back up and show him throwing to 1B.
Hitting should be on the field;hire somebody that can throw some quality BP, then let that same person man 1B for some throws. Show front and rear views during hitting.
No slow motion video.
Running - timed home to first is good; video the stop watch start and stop with the final time. Do it twice for an average.
You have a good start here; I would also recommend finding a summer club team so that he'll get more rep's and hopefully better competition. He'll gain a better sense of where his skills stack up and what he needs to work on.
Is your son a 2017 or 2018? Good luck!