Armadillo

This is my first foray into logo design as well as adobe Illustrator.  I had a hard time with the gridding process and don't quite get how to get the circles to intersect properly, but I think this worked out for the most part.  I chose an armadillo for no particular reason. I just thought it would be something different.

Here's the initial sketch

Here's the final logo

Any and all feedback is welcome. I'm just here to learn.

Thanks!