Hi, thanks for your work, the idea is pleasant and entry #2 is pretty well realized, although i think the 3d treatment is almost necessary as a finishing effect, here it is a little bit too much on #1 and #3, probably because the illustration itself should be simplified. The overall graphical weight will be reduced and the visual impact improved. Sorry for my poor english.
Here are simplified graphics. Level of complexity can rise with scale. What I mean is that when you use your logo in smallest sizes like business card you can have it simple and when using on bigger medium like presentation it can complemented with some details even used in motion like some flash intro clips.