Pressure is great, you're doing well at cutting the ring off instead of following him around. As soon as you let your hands go in exchanges or had him pinned against the ropes you seemed comfortable. Lead hook is pretty great and versatile, although you consistenly drop your right guard when you throw it.
Main thing is, being stiff on the way in before you settle into it and when walking him down. I know it's tough being a pressure fighter and not getting stuck in that mid-end range against a guy like that, but you don't always have to be on the front foot. In the third round, you did a lot better. In part because he was tired and couldn't move or use his jab as well, because of your pressure btw, but also because you started using feints before stepping in and were shifting your weight more freely around from front to back as you were walking him down. More measured, less predictable and better balanced. That's a nice thing to develop more.
4:20 and 6:13 was pretty nice too, because he wasn't expecting it at all. I think drawing the counters out once in a while, like you did there, is a great addition to your pressure style as it keeps them guessing.
Keep doing whatever you're doing man, it's working. You're a tough dude btw, take care of your head/health and keep working on your awareness.