Narrow your stance about 2", you are too wide.
You need to brace your abs harder by taking a better valsalva. Take a big breath of there and then stop an audible cough at the back of your throat. Try it now a few times just sitting there and feel your abs contact. Now do that when you have your belt on and you are under load.
Keep your head down the entire set, particularly as you are coming up.
Not terrible overall.