I probably would steer away from black if you want to keep the country theme

I think charcoal would look very modern and would go well with your existing timber bench tops. But, consider taking a sample home with you and seeing how much dust accumulates on a daily basis and how often you need to clean it to avoid it looking dirty as darker surfaces can sometimes show up dust more than lighter colours.

I think a small round table is a good use of the space. I have a feeling the kitchen/meals could start to feel cramped very quickly. A table with 120cm diameter will seat 4 and 5 at a squeeze. Example table Regarding bar stools, I think you need to find something that slides under the bench to keep the space as open as possible. Finding a seat at 70cm might be a tough thing. Good luck

Absolutely gorgeous