1000mm is enough room, but will feel a little bit tight if you have a few people in kitchen and lots of opening of the tall doors. They are also in a walkway to the garden - is that an issue too?

I wonder if you could move tall fridge and freezer into the corner where that lovely painting is on the wall instead? And then use reduced-depth midheight units all the way along that wall by back door where you have the three tall units at the moment? Am assuming you're not changing the patio doors to allow for full-depth (600mm) units there, which is fine.

Reduced-depth mid-height units would give you loads of pantry space, as well as allowing the light to come in through the patio doors and be less visually heavy than the three tall units standing by themselves.

Even if you leave the three tall units there, I'd add reduced-depth units to the left of them to fill that corner by the patio door - could be used for shoes or outdoor stuff, doesn't need to be pantry items. Just makes the three tall units feel less looming over the rest of the kitchen.

On a separate note, I personally wonder if those ovens at that height are a good idea. They jump out as the focal point of the room, could they be in lower standard units?

Is the gap between the fridge and island 87 or 100? It is quite tight. Silly question but could you reduce the island to 200, 80 for the hob and 60 either side and lose a bar stool? 60cm is normally recommended for each bar stool anyway. You also seem to have reduced depth cupboards on the island? Not sure how the measurements work with seating?

what’s the door to the right? i assume you have 2 entrances, are these both needed?

i agree with Juliet re the ovens. It looks like it will be a lovely kitchen, I’d go light on the island too