Get real here. Do you honestly intend to take advice from any of us, when all we have to go on is a vague description of your cabinet colour, and what those tiles and paint samples look like on our computer monitors???? As always, my advice is to get yourself a colour wheel, and a fan deck of the paint brands you are considering. You need to analyze exactly what the undertones of your "creamy white" cabinets are. I'm not seeing enough to know if a "warm" colour will work in your kitchen or not. It's always better to chose a colour that "works", than spend the next few years wondering exactly what went wrong.

Yes, based on these latest photos, the French gray is far too dainty. I think you're looking at the paint samples in the wrong context. Any color you have there coordinates well enough with your fireplace. But the cabinets will not be placed up against the FP, will they? I think you should be looking at the samples in the kitchen with the island barnwood, wall color, counter material and flooring.

Floorplan is helpful, but we also need to know how wide your aisles are currently (they look tight around the island?). Here's a quick idea (may not be feasible depending on aisle width) - it might look a little odd to leave that arch hanging but it would give you seating and remove the current barrier island. With the new opening to the LR, you could possibly close off that doorway next to the fridge (where does it go?) and/or partially close the opening between kitchen and breakfast (could be used for pantry space, etc. if necessary). I squared off the angled pantry but I was guessing at the measurements. You could leave the angle as-is with this layout, but the overall appliance arrangement can probably be improved by eliminating that angle (depending on those exact measurements). Or a similar idea with an island instead of peninsula, with the sink and DW moved to the perimeter:

I might consult w an interior designer. The shapes are unique . The space is large . there are likely some opportunities at the dining zone . Continuing w changes without a cohesive plan is often not the best w a space like this.