We certainly like the font you used, but we'd like to see a little more complexity in the image mark, for creating a reference to a content management system.
We like the building blocks idea, and the finishing touch on the upper right corner of the W on #2 .
Thing is, by using the big "pixels", it looks a little bit 16bittish, like a misformed space invader ;-) ! Is there any way you could make it less 16-bit and more modern, but still the "building block / modules" idea?