I don't know about having the white opacity "spot" over the images in the logo. Cuz I am sure you might have to showcase that in the black and white version. Now, I am sure you can showcase that in the ads, where you can go nuts. :) It may not showcase the 3D that you desire for the logo, but that doesn't mean you have to get rid of it completely.I think the bottom right is showing strong for right now. If you desire to show all those different elements for the client.
I really like what you have done with the designs. I believe that these all work. I really like the one at the bottom left as being the main the overall logo. Also what you have done for the division logos is great as well. The kerning that you used for the network is what really balances out the whole logo in my opinion. I can tell that you spent a lot of time and put a lot of thought into what you road you wanted to take. Looking good though
The bottom left grew on me too! It took a while, but I think a good thing is brewing within this branding for Visicom!