I think your squat shows you have some inflexibility issues, as your butt tucks under a lot. As was brought out, ankle flexibility is something that you should consider improve as well as plates under the heals (assuming you can’t get the shoes yet). FWIW, here is a link I made a while ago to show my form. It has improved in depth a little bit because of an increase of flexiblity, but the structure is about the same. I used a hip width, not shoulder width, with a 40-45 degree toe flair which REALLY helps with depth. Feel free to check it out: