You REALLY need some Cedar control. I'm headed to the farm to cut down the dozen 3' cedars that sprouted this year in one of pastures. Our neighbor that covers over 5000 acres have zero cedars after years of control. We have oaks coming back. Great habitat. Big ones like in your pic offer special challenges, but on the way from Ponca to Stillwater and OKC, I'm amazed at the number of 3' cedars that are growing in bluestem pastures. In a few years no grass will be seen. Right now they can be handled by a controlled burn or a brush hog. After about 5-6' even fire won't kill them. Hate those danged things.
This is the 1st year I've been on this place in almost 25 years. It doesn't even resemble what it looked like back then. Back then you could pull in the gate and see the big pond if it was the winter time. The big problem is that my FIL owns a half interest and doesn't have the money to hire someone in. The other owner actually has a tractor and brush hog, as you can see in my pic I'm hunting one of the spots he mows. But he won't put any real time into it, I don't think he has much money either. This land has been in the family for a couple of generations now that I know of and it's almost three.
Me and my BIL are going to start up with the chainsaws, rent a tractor with brush hog and maybe buy a box blade to pile it up to burn off. It's totally out of hand. I wish we were closer, I'd just buy a tractor and we'd get after it. I want to put in a food plot so bad I can't stand it. There's 2 ponds on it and they are fishable, but one is so small you can cast all the way end to end. It's tiny but it must be spring fed as it's never gone dry. Throw a bait out, any bait, and you'll catch a stunted bass out of that mud hole. We used to catch all we could and move them down to the bigger pond. Today the big pond was very low but I had thought it was silted in bad. Not so, that thing will still be at least 20 feet deep when full.