This layout means you have essentially 1 open plan space downstairs assuming this is the full footprint. I would have the front reception closed from the kitchen and use this wall space to reimagine your kitchen and have entry to reception from hall only. I would consider putting the dining area where current kitchen is and break the window to have full length if possible where your sink is. Island and full kitchen with a seating area toward door overlooking the back garden.

Drawers instead of cupboards in islands for plates and pots. Hidden cutlery tray. Corner pull out unit or you lose a corner. Downdrafter over hob leaves the ceiling free for more impact lighting. Stainless steel sink, not the prettiest but undermount it you won’t see it. Just did our kitchen so it’s fresh in my mind. Not quite finished but close. 😃 Homebase House Beautiful range. Great quality.