Ok, first of all I think we have very similar tastes because I looked at the pics you tagged in your idea books, but this layout is not efficient at all. your working triangle is non existent and I think there is way too much crowded in one corner. The island is staring out into nothing, and definitely needs to be rotated 90 degrees and I think the shape looks like something you would see in a bar. I am currently doing my own kitchen in two shades of painted cabinetry and will post my drawings and actual images, and then some images that you might like. I think the sink and DW need to be in the island. The fridge needs to be integrated to avoid this much stainless steel since you clearly like a more eclectic, non modern look, and the hood can be more elaborate. I personally think a 48" range with a dramatic hood on that back will with the island turned the correct way will be a nice focal point for your kitchen. You could also do a microwave drawer in your island, that way you only see the range from the front. Also, where is your pantry? Where are you storing food? The second image is a range hood you will probably like The third and fourth are drawings of my kitchen, and the first is a painted on painted kitchen with whimsy you might like. I will attach photos of my project on an additional feed since 4 photos is the limit.

Two ideas. Both times I would block up the entrance to the second half of the room to make more usuable space. Both ideas have a island with a dining table attached. Obviously these drawings are not to scale but everything should fit in. I would utilise the kitchen cuboards for utilities- intergrated appliances. If you can dont forget to use the space under your stairs as well. Also use the long wall at the bottom of the stairs for extra storage and alcoves.

A15) @Dara Cooke: If you can't afford a quartz or granite worktop from day one then I would recommend using a laminate worktop as a temporary solution. If you don't put tiles up as a backsplash then replacing the worktops can be relatively easy in a couple of years.

A few things I would change from experience...instead of a single and double door I would spend the extra money and put in a bifold corner section...would open up the space so much more. as for the kitchen...completely flip your design...put your breakfast bar closer to the window...make it large and multipurpose with the hob in it and then put your main band of cabinets either left, right or behind? We have recently restructured our existing cabinets to this layout and put in new countertops and it works far better than before!