Pretty solid "Paul" on it. But it falls apart at the "M". Notice that his "M" starts low and gets higher with each stroke. It should be the other way around. The first stroke on his "M" is normally higher than the other 2 strokes. And the rest of the signature is just sloppy. Just my 2 pennies.
No good but James is right at a good attempt. I got McCartney in Detroit last weekend. I got him when I was given a private tour of Motown Records Museum. He was nice as usual but really caught off guard. He did not sign landing or taking off.