Get rid of the bench they are awful seating at a dining table .The table seems too small for the space, the light needs to be changed to something better with your furniture and hung much lower. While you are at the lighting the kitchen needs a lighting upgrade also. I don’t know what farmhouse chairs are in your mind so would need a picture of those . A rug needs to have at least 30” all the way around the table and with a bench even more. I would start with a bigger table and a rug then work on the space from there.

That kitchen makes no sense at all. You have only 3 mimsy little sections of countertop to work on (besides the island). But the island is clearly designed primarily for eating. Think of this: When you're baking or prepping a turkey, where do you put the big stuff as you work? You have no counter section big enough to hold the turkey pan and the bowl of stuffing as you fill the bird, no counter section big enough for a cookie sheet and a stand mixer. And don't suggest doing the raw turkey on the island, because there is no sink there for it and the island is for eating; you don't want raw turkey goop on the island. You have no continuous countertop flow between the sink and the stove (because of the oven), so every drippy thing has to be carried across the floor because there's an oven in the way. Slip hazard. And with the freezer, pantry, and wine/coffee bar 25 feet away, it gives the sense that the whole 625 sq. ft. space is kitchen. There's no place to put a dining table that allows it to have its own space. It will always look like a kitchen table, caught in the cross traffic between two 6-foot doorways. Do-over.

well, you could always remove the chair rail. but yes, if you paint the walls, you'll have to pick the same color to carry out through those adjoining halls I think Pale Oak, , Smoke Embers, Nimbus, or Light pewter would all be lovely in your space. I'd also hang a nice piece of art here to tie in the pale aqua chairs, maybe to some pillows on the sofa w/those colors. the fireplace/mantle is way too traditional looking. I'd remove everything. if you want more Boho, try some zellige tile on the surround I love this selection^ or a cement tile with natural wood mantle or, do more of a modern surround w/a marble tile at the very least, do a diff surround w/out the fluting

Without the measurements that a pro would know to provide, there is no possible offering of a solution. That a pro would not need offered. I suggest you contact an actual design pro to do an as built for the space, and then use their services to space plan what is a very expensive project.