These look pretty good, and I’m no expert, but thought I might throw a few ideas out.
Bar position may be a hair high, but not bad. There’s not a lot of red there to tell, and I can’t really see your scapulae, but the bar should rest just below the spine of the scapula. I’m going to post a link where Ripplestiltskin explains this, among other things.
I also think your elbows need to be pointed more towards the floor, which will help create tightness and a shelf for the bar to rest on.
It appears that you’re not setting your spine angle enough - it should be more horizontal - think nipples to the floor.
Finally, your head should be tilted a slight bit more forward - look at the floor about six feet in front of you.
Oh, and, exhale on the concentric, not at the top. In other words, as you hit the sticking point coming out of the hole.
I’ve probably missed something, and likely wrong on a few things, but hey, it’s the interwebz.
Here’s the link.