Feedback, awesome job....you've got my creative juices flowing...now I have to throttle myself back....
#17 and 18 are great but now with all my suggestions they look "too busy".
#19 and
#20 the tentacle graphic almost looks a little devilish - so not so appropriate.
Can I see
#16 with the motto along the bottom, and with small number "12" and "25" on either side of sword handle?