None of these logos have any meaning behind them. Can we not get a real graphics designer to make something? Right now Logo 5 is the most visually appealing but it lacks any meaning.
Offer a bounty, why should a "real" graphics designer, who you will only deem as "real" when YOUR sensibilities are pleased, why should a REAL graphic designer work for you for free?
Put up a bounty, offer some value for your sensibilities. If you think you have what it takes to make a proper selection for a logo for this coin, then provide some VALUE for that. Show us that you think your ability to choose a proper design ... has value, by offering a bounty.
It's obvious you have no skills, but you certainly know how to apply general criticism, but that criticism is of YOURSELF, as you are not providing any value to any other person, for YOUR desires.