There has been some discussion here about what some are calling 'Paint Scrapes', along the middle of the A .
If you look closer at the A, you will see that the lower part of the A is curved inwards, and so is the upper part of the A . This indicates that the whole side of the aircraft has been subjected to some pressure, caused by its impact with the water. The line of no-paint is actually a fold line.
The Aluminium will have actually deflected more than that, but sprung back to its present position, as elastic deformation has taken place.
So the paint surface will have been subjected to much more bend than is currently visible.
Anyone with a knowledge of the yield strength of the actual Aluminium used (possibly Duralumin.) would be able to give the exact figures of how far the panel would have moved, to recover to its present position.