Here are a few we could talk about
Going clockwise from top-left, in each photo, there are eight (1-4 and 5-8). I picked these to show as many different styles as I could find. Obviously, #3 in photo 1 is the bad signature from the ball. But #2 in photo 1 is also bad in my opinion. I'm just using my eyeballs and my brain's ability to recognize patterns, so tell me I'm wrong, and why.