ABUZZ in #3 is very interesting although the character from #4 is more memorable. Perhaps you can combine the two and explore more colors. Character in #4 is likable, but just a little too "mean" with the long pointy nose.
thanks for the feedback. a friendlier version of the buzz guy (inspired by a design on an antique American Indian pottery piece) and using font from #3. Love to come up with this type character... I was in the early game industry in Marketing for Atari in the 70's! Carol businessbuilders.com