Eyezberg Logo, opinions please

Hi Folks,
I’m getting a logo made for free by a very nice guy;
so far, this is what we got:
http://www.belogodesign.com/project/eyesbergz.html

I’m still not 100% happy with any of these,
so if anyone could tell me what to change,
how to improve N° 1,2,3,4 or 5…?

Thanks a lot. :wink: