This keyboard layout looks acceptable: there are enough keys for the localizing of most languages. For example, the Ü Ö Ä of the German language and the Å Ö Ä of the Swedish and some other languages can be put to their standard keys: on the right-thumb side of the P and L keys.

The layout could be improved a bit by adding a 2nd shift key. Perhaps a single key is enough for Fn and Sym as well as Ctrl, which would replace the "Command" keys of Apple computers in the picture. And is the CapsLock really needed? On full-size keyboards it causes constant trouble, because it is too near the Shift key, and therefore is hit too easily by accident. I'd prefer seeing the Tab key instead of the CapsLock key. If the CapsLock function is done on virtual keyboards with double-tapping on the Shift key, it may be easier to apply the same functionality also on the HW Qwerty. With these omissions, for a compromise layout, it may be possibles to reduce the number of key columns from 13 to 12. But please remember that the Ctrl key is a must!

Although the above picture may not represent any real keyboard, you dirkvl could consider adding its picture to the root message, with this title: Full