Shoutbox

Cool WJ

The first one is the best one.. I suggest you to remove purple gradient thingy and put the Silhouette of people in white or light grey.. If you want to say in basic colors its fine...but if you put in an orange gradient in background it will give prominance to bridge & building Silhouette

I use Myriad, it looks more... professional.

Also I'd do the transition a little bit broader and the blus it (only the transition) So one can't notice the color steps in it.