The simplicity of the logo is on target. We're trying to stay away from blue...perhaps this could be replaced with another color. I also wonder if 'vivion' could be made to standout a bit more with a subtle 3D effect. You are headed in the right direction though...I'd like to see additional variations on the two basic themes #2 and #3.
Thank you very much for the changes made...I really like the your work. Now I need to get the rest of my team with me. You're really creative and talented.