I prefer Entry #6 over Entry #7 because it is simpler.
Some feedback: I don't like gradients in typography typically — makes it hard to deal with in various print scenarios. The Black Belt with the red is more specific to Brazilian Jiu Jitsu, and although it is more prevalent in the media we don't want to exclude other systems.
Thank's for your feedback, i'll submit my revision design immediately. may i know how japanese jiu jitsu black belt look a like..? how about karate black belt..are they similiar..?
#10 is my revision design, i change gradient on text to solid red color and i remove red strip on black belt. Hope that correct jiu jitsu belt. All feedback are welcome