That is a beautiful set of slabs you have. For finishing I’m a fan of letting the natural color of the wood speak for itself, and try to get it almost to the point of the first time you make a cut and open the log up. I really like Rubio Monocoat in their natural finish. It’s a flooring finisher and extremely durable. It bonds with the surface of the wood and doesn’t soak in, a little goes a long way. I left a frozen water bottle on a test piece and let it sit for almost 2 days with the moisture on it, in the right light you can see a faint ring/stain. Otherwise you would never know it’s there. For a natural look on the wood it’s hard to beat, supposed to blend well if maintenance repairs are needed as well.