I have a similar layout on a project I did recently, take a look at my page with Rogers-Bexhill there is a large L-Shape with Island and the door is situated in a similar position. The Hob is on the island. hope this helps you along the way with your new proposed kitchen layout. feel free to ask me any questions and please leave feedback on any photos that you like.

Both Hansgrohe and (Friedrich) Grohe are German companies; Friedrich was a son of Hans who went on his own in the 1930s, so they share a certain heritage. These days, Grohe is larger and no longer family owned. Both produce outside Germany as well as on their original German sites still. Both produce "basic" and "high-end" ranges. They're both regarded well back home in Germany, much of the choice is down to personal preference. Hansgrohe is on average slightly more expensive (but not on everything). They also own the Axor design brand which has a more "ecletic" selection. One can mix-and-match; in our bath (bit messy, sorry - we're using it for the washing up while waiting for the kitchen to be installed), the mixer is Grohe as is the shower wall outlet, the shower rail and head shower arm (just above the shower screen) are Hansgrohe pieces. At least the chromed finishes are very close for the two: Both can be sourced well below retail list prices - if you're prepared to wait, German online sellers for bathroom goods tend to have many-months delivery timelines. For Grohe essentials (the classical Grotherm mixers) at least, any German DIY shop stocks these at very attractive prices (the difference to the UK retail price list will pay for the ferry ticket and fuel).

If you have stools up at the island there is a tight spot with the end chair or bench. I’ve drawn with 1.2m gangways but perhaps you could reduce the kitchen side of the island a bit…. Be mindful of sightlines to the TV if you have it in the top right corner (best place for maximum viewing)

You are planning a small room with three doors. Try drawing it to scale to be sure you can actually fit a bed I there. Don’t forget that when it is insulated it will be about 12cm smaller.