We have the dishwasher set up similarly – it works quite well for right-handed people too. In any case, I haven’t noticed myself twisting awkwardly there. What, in my opinion, really doesn’t work at all is that the sink is so far away from the island. If it’s mainly supposed to be used for preparation and clean-up, you need a basin there quite often. To wash vegetables, rinse your fingers, wash the cloth, dump things out, etc. This is arranged in a very inconvenient way. I don’t find the cooktop in the passageway that disturbing (if the passageway is wide enough), you don’t stand by the cooktop that often – but optimal is something else…
I’m a fan of islands, but here I would prefer two parallel kitchen rows: one on the window side, as already there now, and the other parallel to it on the opposite wall, with the tall cabinets between the two rows. Both kitchen rows with extra deep base cabinets, about 70–75cm (gives plenty of storage space!), then there would be about 130cm distance in between, if I see that correctly. Optimal! If possible, plan a basin on both kitchen rows (I don’t know if it’s still possible to get water on the other side as well), once a larger main basin, once a smaller rinsing basin. You need the basin much more often than the cooktop! If it doesn’t work, it doesn’t work. If necessary, a small attached “half-island” as the end of one of the kitchen rows, but it should really only be small because the passageway into the kitchen shouldn’t be smaller than 115.
Oops, I just noticed: there is a passage between the tall cabinets and the island. Really planned that way? That leaves really little room for a kitchen…
Then no row along the window wall, but a parallel half-island to the tall cabinet row or a U-shape, but attach the island to the other side (window side), otherwise you’re always running a slalom through the kitchen and disturbing whoever is working there. Right now it’s not a kitchen but a passage room. That’s annoying when cooking! So don’t make the passage to the living area go through the cooking area, as it is now. Absolutely no way! But a kitchen designer should have that on the plan….