I know it's tough to decide.. Maybe this article will help about the color symbolism and psychology
http://www.logodesign.com/logo_design/2006/04/17/color-symbolism-the-basics-of-color-psychology/I'm starting again with another set of logos, based on almost the same coloring, but in this one the number "2" is taken out of the letter "D" for better readability an maintaining the "square look" of the logo. Don't worry about other color changes, even after the contest is over. Any changes of any type can be made, until you are happy with the results I'm more happy to do them, because I really like and I'm proud how this logo turned out. Thank you.
(This comment references Entry #43)