For all none of you curious what the german is, here's a half-baked may or may not be correct translation.
Bottom left: the hand is not a flat board, but a framework of bones coated with muscles, with sinews, and with skin. It makes possible a lot of flexible movements.
Top right: Correct (in bold)
Not only are the fingers spread/splayed, but the whole palm/surface of the hand is wider.
Bottom: False (in bold)
Make sure that not only are the fingers spread/splayed, but that the whole surface area of the hand becomes wider
Whether this makes the tut better or worse is up to you