We like these a lot. Strong clear colors pop off the dark field, and the colors could be inverted for printing on white. Very nice! #7 is a great lighter version on #9, but something looks a bit off about the 'ear' on the left side. It looks perhaps like it's broken rather folded? The #9 version seems a bit clearer that way.
#4 and 6 we found really creative, but in being so they make it hard to read the "h". That's possibly inherent in the design and unavoidable but is the only reason we're shying away from that treatment.
Congrats on winning the contest, we love the final design! Very much appreciate the revisions and options you provided.
I saw you uploaded the files, thank you for that. Could you please also provide the black-and-white version? Then I'll approve the files and you get the bounty.