How to clad a projecting plinth (facade-basement wall)

Whether this is wrong or right cannot be judged based on a photo, because the sheet metal is only one of several components that belong to a good overall solution. For example, the sheet metal must also be connected to the wall with a waterproof joint, otherwise the nicest sheet metal is useless. Therefore, I would not guess here but have a suitable and permanently watertight solution made – by a professional!

Almost the other way around:

In my opinion, the planner botched it badly, in which I do not see the slightest defect limited to the optics. And I wonder why he only responds, but not also answers.

Who knows if there is even a planner here. The OP unfortunately does not comment on this.

The solution with the sheet metal is obvious. I don’t find it nice. If it is a design element of the house, then it would not be wrong to plan it through to the end. Perhaps one could recommend to the planner, inspired by the thread headline, to dress up as a protruding base for Carnival.

Of course there is a planner, but that is not yet finally clarified. That was only addressed in the last meeting last Saturday. Ultimately, the structural engineer has a major say in "where and how strong the concrete basement wall beneath the 49er Ytong wall must be."