Thank you everyone for your efforts thus far, there has been some great work produced.
We are honing in on our color pallet and would like to take a 'green' and 'sustainable' focus with greens, browns, and just black.
See the image here for some idea of the direction that we would like to go at:
http://cdn.mashable.com/wp-content/uploads/2010/09/green-logos.jpgWe are favoring entry #7 and the way that the image of the hippo and the concrete truck were brought together.
Entries #21 and #5 are headed in the right direction but we would like to see some more refining of bringing those two images together in a 'clever' way.
We also like the color blue used in #17 so would like to also see some of your proofs that instead of brown, green, and black are maybe one to two shades of blue and black.
Keep up the great work!