Better than last time. I would widen your grip a touch so your hands aren't digging into your legs. This will also help you get your hips a touch lower and bar slightly more forward (so it is over mid foot). Your back squeeze (flattening) is better, but could be better still. Slow the flattening down so that it takes a bit longer. Imagine waving the squeeze down your back from top to bottom very slowly while pulling the slack out of the bar. You also need to sort out your grip issue so that you can keep your hands on the bar for the whole set. If the bar is slipping, you need to use chalk on your hands. If you can't use chalk, find another gym or switch to a mixed (alternate) grip.