One way to get better at your form is to go through and look for parts that just don’t feel quite right. Once you have found a part that feels crummy, you drill that part over and over, trying to fix the body mechanic until it feels better.
It is a fabulous way to work on your forms and I highly recommend it.
However, I also highly recommend filming yourself and instead of feeling what you did wrong and could improve, looking for something in the video of yourself doing the form that could be improved. In my experience, the video often reveals mistakes in movement that we don’t feel at all – it reveals hidden mistakes.