Were you looking for overall critiques or just an answer on your feet? It looks to me like as you lift your shifting your weight to the back of your feet. That's why your toes are lifting up. This is a good thing. You should push through your heals as you lock out your deadlifts. I don't think it's an issue. In fact, I think I do the same thing, lol.
Current PRs at 242- 495, 345, 585, 1425