I think it can be hard to visualise how it will eventually look as most designs rarely include all the lovely things that give a kitchen warmth and homeliness such as lighting, shelving and all the accessories. I don’t think the cladding and the tv quite look right there. A tv is usually placed near sofas etc. Will you be having a seating area? I assume the cladding bit is the chimney breast? I think I would paint it the same as the units by colour matching with paint and then add shelves or some art there.
Not a tv wall, but I like how the accessories add homeliness, although maybe a few too many accessories in this pic!

Thank you so much for taking the time to reply, this is lovely x

If you are unhappy about the chimney breast then consider having it removed.

Separately I like 1 design that has a chunky breakfast bar and a thin worktop. I’m not keen on the tall units being broken up by the chimney breast because the practical considerations of working in the kitchen and would definitely remove it.

For me I think putting the sink in front of the window feels a bit 1950s housewife and while I concede it’s often the only place in a big room like this that’s not the case.

So consider having the tall units on what is currently a bare wall opposite the window. Consider having the sink to the right of the current chimney breast so it’s lined up with the hob on the island, swap the seating to the window end of the islands and swap the window for a door to the garden.

And Sonia has chosen a very pretty image and your kitchen is very architectural. Architectural is my preferred style but you can make it more decorative with a highly patterned worktop and splashback, clever lighting, perhaps a cabinet door with texture, open shelving, perhaps positioning your ovens side by side so they have more presence, having a wine cooler on display somewhere prominent and a contrast handle rail.

Thank you for this helpful advice