OK, I normally do gardens, but here's my take..... You kitchen is very similar to ours, which we've lived with for a few years now. Based on our experience, I'd move the sink to be opposite the cooker, with dishwasher adjacent and a ready-use plate rack over/adjacent (most people use dishwashers these days, so having the food preparation area by the window is more meaningful). You might also want to think about swapping the sink and cooker sides, since the route for dirty plates is from the dining table to the peninsula, to the dishwasher/sink. The peninsula is too narrow - this is where everything gets "dumped", so more surface area, creeping round the corner, will be much more useful: also, instead of a rounded end, a square end with cutlery drawers etc. would fit with the route of flow from kitchen to table. Agree with Ash that moving the door to the utility would work better - clear route of flow from dining area to the door without going into the more confined kitchen space. If you have an american style fridge-freezer along the bottom wall, say, you might want a second, under-unit fridge near the food prep area, for things you use all the time (thus preserving the traditional "work triangle"). Oh, and make sure you have a little spice cupboard right next to the cooker!

I think the layout is fine but could probably do with a few tweaks. For me, the island is too long and space you have either side is on the right side. I like to work on a minimum of 1 metre between island and wall/units. The island as it is is tighter than that and I think it will look pretty squashed on the side with less than 900 mm. As mentions on an earlier comment, the length of the island will mean you'll need a joint if using Quartz or granite. If you can shrink the island length ways then reducing the width would look right proportion wise and that would give you the extra room you need. I wouldn't worry about the fridge being too far from the sink, kitchen diners these days can be large areas and if you want a design like yours or a feature American fridge run its common to have the fridge further away. As long as Bob is near sink for emptying pans of hot water you'll be fine. If you're looking to avoid having the same as what you already have then I think that general theme for the layout is on the right track

hi, my sister in law has a very similar sized kitchen to u and shebhasbso much storage she even has empty cupboards!! she put her sink infront of the windowbwith the hob opposite, to the left of the hob shebhas a tall unit with her ovens in it and the otherside she has her fridge and then 2 base units and 2glass display wall units. on the far wall to the right of her sink she has wall units, and to the left of her sink she has a stretch of worktop similar to ur plan which leads to a peninsular island that steps down from her worktop height to create a table. would love to see some pics of what plan you go with and the finished result

Hmmm, pesky walls! Bearing all that in mind you're probably quite close to what would work best for you. I would suggest though that the tall units stay on the left - if they're on the right you're cutting out a lot of light from your primary natural light source. Also, try not to have your dishwasher tucked right into a corner as that just makes it difficult to work around - sometimes you can crash into handles when opening and closing.. I've tweaked your plan a little which I hope gets you a bit closer to your final solution: good luck!