About this detail of the Tiger
In Step 25 of the instructions of this kit, you are told to attach Part B66 to the turret roof. In reality this is the cover for a periscope; the periscope itself is a clear part, F2, which you attach underneath the roof.
But the real Tiger "Tiki" didn't have a periscope here. To represent "Tiki" better, you should omit these parts and fill the holes.
The other decal option, Tiger "231", did have a periscope. But its cover was narrower than the kit part, and it had parallel sides, not tapered sides.