At one time, I was a student in a private school for oil painting. The general thought of the time was, "the bigger the signature, the bigger the ego". I have always believed this is true. Some very famous painters (and lathe turners) have signatures that are way too big and conspicuous, but it doesn't mean they aren't good at what they do.......it just means that, in the eyes of the artist, their signature is more important to the work of art, than many observers will think.
ooc