How deep is the concrete? Looks more like a sidewalk than a porch.

The left side where those double windows are? Seems it would be awfully sunny and hot to sit there but maybe this is the north side of the house and this particular picture was taken when this as sunny as it gets. Personally, I wouldn’t put chairs there. Seems too small an area, a too-informal scenario for this beautiful home.

Regardless, if the decision has already been made, something simple and dignified would match the tone of the house.