I would break it up into various rooms, approximately 10 feet by 15 feet each, though a longer one with a long narrow (2 feet?) water feature against the wall and seating and plants in the center part would work. Plants on the wall, making it vertically green. A path leading from room to room should jog, so you cannot see straight through. Change the theme of rooms, large fancy pottery, an outdoor dining area, sunbathing area if possible.

You have a great opportunity to go eclectic. So using very modern and colourful elements for the kitchen - modern storage cannisters, a vase, lights, toaster, even mixer, you start to introduce shocks of colour and shape that jar with the expectations in a traditional kitchen. In this image see how the chairs just add a touch of cheek to cheer up the kitchen...

I'd open it above like a 'pass-through' and bring the table out in front of it with a bench under the opening.

I would remove the East wall of the kitchen and extend the island to where the wall is now creating lots of counter seating. Then you can use the dinning room however you choose. I would also open up the walls around the mud room. It feels quit compartmentalized right now.