I think a comfortable distance between the island and the counter is around 42". It seems that you have only 30" between your cook top and the counter. I might be a little too tight. The wall between the entrance and the kitchen could be 4' long instead of 6', you would then be able to move the island a foot which would give you more room between the cook top and the island. Could you switch the location of the toilet and vanity in your dad's bathroom so your enter facing a vanity instead of a toilet which is a lot nicer.

I'd go for make it white; then right there, flop one nice little white overstuffed loveseat or something that fit, or one big whopping chair, and fit in a tiny table and light; treat that corner as it's very own micro-retreat, and the seating is to not face out into the room. Like little lounge spots put under stairs, make this one dedicated to the view; and make it minimal. Decorate the rest of the room as if the column and retreat bit isn't there.

Do you know your style and what mood you would like to create for your living room ? you can take style quiz incase you would like to find out your style. Based on your style you can select the decor items to display. even if you want a luxurious feel to you room, add mirrors or metal accents. A traditional nature inspired would involve textured items in wood, cane, handicrafts etc.

that is what i have added if you can see the pic above.. want some suggestions on partition that i can use between dining and sitting