I think the least strong part of this is that I'm looking at a font (or I think I am). Take a quick look at the Walt Disney logo; there are changes in line weight and there is a uniqueness to each of his letters. I think it's the personality of the letters, variety in line weight and IMPERFECTIONS that separate good signature-logos from the countless others that are so popular right now.
Replies
You need to speed it up and make the animation less linear also cause right now you really feel the "linear animation on a spline".
Some new animated signatures are here
[ame="http://www.youtube.com/watch?v=ex2TZ4zl9dI"]Animated Signature - YouTube[/ame]
[ame="http://www.youtube.com/watch?v=kF8zHecj8s4"]Sign Animation, Signature Animation - YouTube[/ame]