hi do not try to understand , the thing is that no one manages to do anyway … they have tons of logos and basically choose whatever they feel like until lots of guys, me included have been feeling like this is not really a big deal to try to submit in this category as u are never sure that u can get approved anyway …
as for your submissions, i woudl say that i am almost sure that u have either copyright or uniqueness issues, the other ones are pretty good if u ask me and worked out , the brave / lion one is definitely even gorgeous if u ask me … now i guess that the only reason that they may find for a rejection is that fonts or fonts combinations probably not specific enough for them …