Try making your face cut apex a little deeper into the tree on the next one, as you're leaving the hinge awful thick. I suspect you had to tug a bit to get that one moving, given the hinge looks nearly 5" thick. I usually aim for a hinge thickness around 10%-15% of tree diameter, and definitely way below 20%.
If EAB-killed ash, which it appears it could be, there are a few added precautions. EAB-killed ash can get very brittle if left standing dead any extended amount of time.
1. Wear a hardhat. You should always wear a hardhat when felling, but particularly with these, as they can drop a lot of branches on you from above, as they start moving.
2. Don't dally in your back-cut, and don't walk or stand behind tree. That's because many have reported EAB-killed ash has a tendency to barber chair or otherwise "explode" if a gust catches you during the cut. I've personally never seen it, and I've cut miles and miles of the stuff, but others swear they're prone to it.
There are techniques for avoiding barberchair, in fact getting the hinge thickness down as I suggested above is top among them, which might be why I've never experienced that problem on EAB ash. In addition to that, using a bar long enough to access the whole cut from one side and not taking too much time to get it done, are both useful measures. The idea is to limit the time from which you start compromising the tree with that back cut, and when you've got the hinge formed down thin enough for the tree to safely fall. If the hinge is still too thick and stiff when it starts to go over, chance of barberchair is increased substantially.
Pro fellers will tell you they spend all their time looking up while cutting, not looking at the cut they're making. That's a developed skill, easier said than done, but do keep it in mind. The part of the tree in front of your face will almost never kill you, it's the branches that come raining down from above, when the thing starts moving.