the cabinets should first be designed for use and then for looks.....only have wall cabinets that you can reach safely and are essential for what needs to be stored in that location eg maybe a kettle and toaster can be used near the kitchen window with cups & glasses in wall cabinets above but wall cabinet doors left open above the kitchen window can be a problem banging heads so consider less wall cabinets....and can everyone reach the top shelves.... the kitchen sink should be more central to allow for counter on either side and i would have the double sink in the kitchen for washing veges and rinsing bigger saucepans etc ...is there a microwave and other big appliances like airfryer, food processor, rice cooker etc and where will they be used regularly and will they need to be left out or will they be stored away and only used occasionally ...in the scullery or kitchen?... how will you use the separate counter areas...prepare tea, coffee toast, use appliances, prep food for cooking... where will the dirty dishes be stacked while you load the dishwasher..left to right or right to left or both? ..make the walkway at least 1200 between all counters, raise the double oven higher to be level with top of fridge space and have a deeper pot drawer underneath, waterfall edges on the island makes it awkward for using stools ..i would have a fridge in the kitchen and separate freezer in the scullery to allow for more prep space next to the cooktop and use kitchen drawers for more food storage than scullery shelves and/or basket on shelves in the scullery for packets of rice, noodles etc ..include counter (with single full width drawer) under the window in the scullery... with open space below for rubbish bins ..the open shelves in the scullery should be no more than 30 cm deep above counter height with the lowest wall shelf at least 120 off the floor to allow for more full depth counter ideal for standing big appliances and, consider a door to close off the scullery and omit doors on all wall cabinets in the scullery...so much to consider and everyone works differently so have a look at your existing kitchen to identify what already works for you and your your family and what could be made better in the new kitchen