Which logo? / Critique

talk design
1

1 http://www.flickr.com/photos/aronagelii/5403928397/
2 http://www.flickr.com/photos/aronagelii/5403928465/
3 http://www.flickr.com/photos/aronagelii/5403928535/
4 http://www.flickr.com/photos/aronagelii/5404531496/

It’s a logo or icon for a world-wide cube related thingy.

It’s nowhere near finished, all tweaks and ideas are very welcome.

Which one looks most neat? Any ideas on finishing touches etc?

Thanks!

PS. I want it to look kind of simple, not styled by gradients and stuff if you know what I mean. DS.

[COLOR=“DarkGreen”]EDIT:[/COLOR] These two are the latest ones, opinions? Better? Worse?

5 http://www.flickr.com/photos/aronagelii/5412785511/
6 http://www.flickr.com/photos/aronagelii/5412785585/

Thanks