Can you add dimensions? Especially distance from wall to island, and wall to table?

It’s is 5 feet from the island and 6.5 feet from table

I'd make a group of art by table setting to break up wall whether art pictures something you love

Like here?

Linear fireplace?

https://modernblaze.com/blogs/design/63002499-10-cool-kitchens-with-fireplaces

Sarah, I see your other similar post with more photos including your dining area. Add those photos here or take new ones, stand in the centre of each wall and take a pic straight across.
Has something changed in the layout, was your fridge ever on the long wall? Maybe you could add a buffet/sideboard or a shallow hutch/armoire cabinet with the same shaker style. You might find an interesting vintage piece to paint. Or a wood piece that might have more warmth. Any furniture piece will depend on your clearance for the end of the peninsula and how the piece balances the other walls. Art that brings in more color, you mentioned you have too much grey? Red and the right aqua/blue is cheery, does that appeal to you at all? Just throwing some photos on to see if something appeals as far as shapes. I’d mark the floor and wall with some painters tape to try out sizes. Do you need more storage? Anything special you’d want to display?