Is your comment based on the different sizes of the drawn vehicles or that a Tiger II shaped turret just wouldn't work with a Panther hull?The problem is that when you start altering any turret size to fit your drawing there are always consequences. Shortening the length will over emphasise the height but more importantly reduce the internal volume for the gun recoil - after all there is a good reason why turrets are the size they are. For that very reason, my own rule is always to keep every part of an AH design in scale with every other part. Once you start mixing and matching scales things rapidly become unrealistic - a Panzer II hull with a shrunken Tiger II turret is just never going to work!
In other words, if the turret is too big, it’s too big and you will need to look for something else. Size mismatches and what is or is not possible often become more obvious when you include a front view perspective.
PS: What I mean is that the design remains the same but that the turret would have been build to fit on a Panther.