The main ideas behind my proposal:
Emphasizing the cathedral ceiling character by adding shiplap cover between the ceiling rafters. As you will see on the render images, the rafters look great when painted white, while the shiplap cover could be either white or light grey.
Covering the existing masonry around the fireplace by adding distance battens or a lightweight metal frame and finishing with plaster boards. This makes it possible to create recessed shelves with a frame around, mirrors in the backside, and in-built lighting above them. This also creates a less symmetrical and more characteristic design for the fireplace.
I added a frame around the fireplace door and used natural stone (e.g. travertine) in the visualizations.
The kitchen was designed as a contemporary, pure one, but after having read your wish about a more traditional kitchen, I added some decorative mouldings to the original design in the last minute, so you can see both versions and decide which one you prefer.
I tried to maximize the cabinet size, however, I also added a wardrobe as a part of the kitchen (accessible from the backyard door area) for hiding shoes and the clothes previously stored on coat racks (as seen on the your pictures).
The dining table is also [i]built[/i] together with the kitchen furniture (at dining table height), however because of its placement, it can also serve as a kitchen counter. This way it doesn’t hinder moving around in the room in a comfortable manner.
Track lighting placed between the rafters above the kitchen.
3 identical pendant (available in different colours) hanging above the dining table.
Also, a large wrought iron chandellier would fit well with your cathedral ceiling as you can seen on the renders. I placed it in the middle of the room hanging from the ridge beam.
You will find a list of appliances/furniture with a link to the producer/retailer in the pdf with the floor plan, while there’s more information on the optional materials/colors in the pdf [i]Design options - further render images[/i].
If you have any additional questions/request, feel free to drop me a line:
Good luck with your renovation project!