On the 225 set, it looks like you may have set your feet too wide. This is common when people go to take heavy weights because they want to “get big” and take up more “space” to feel strong. So they put their feet wider and it messes up their technique. Make sure your feet are right under your hips.
All of these look locked out, but try to focus on squeezing the glutes to lock it out, try not to stand tall by arching your lower back.
All in all these are looking better every time.