great animation, tips for improvement.
- As you said, the cumshot looks janky, that's probably because cum doesnt shoot out in a straight line, and it doesn't shoot out in a beam, it's a liquid so it forms into beads and raindrop/comet shapes
- There's a rogue skeleton node? cluster of polygons? in her back where her ass joins the base of the spine that keeps jarring out every time the ass "twerks" which makes her look like one of those old moving wooden toys where you can see the CAM wheels poking out the back
And that's it, thats all the fault i could find (besides wooden dialogue, but you're working with samples from the game so you get a pass on that)