Thank you very much Prospero!
The details are beautiful and even the windows appear to be in the correct position. A work of art!
Thanks also for adding the A340 and 777 seatmaps already.

Maybe it would be possible to add the row number 6 for the two center seats (6DG) on to clarify that row 7 is indeed mostly straight across on the 777 (Similar to rows 22 and 23 in economy), while on the A340, the first two center seats in business are also 6DG, but they are substantially further forward than 6A &K, and the last two center seats in business on the A340 are row 15 and not 14.

Swiss had seatmaps which where nearly as nice and useful as yours in the booking engine, they just lacked the color and did not have as much detail. LH IT has unfortunately enhanced those good maps away recently and replaced them by the really ugly, "we are so cheap"-attitude blobs, where one can neither see which are the good business seats, nor the position of the windows. Even Deutsche Bahn does it better than LH & LX.
Sad story, which you've saved very nicely.