The first 2 pictures were taken using a Nokia N70 with a 2MP main camera. The other pictures, using an HTC TouchPro2 with a 3MP cam. All images were adjusted a bit -- Added more contrast and brightness.
The biggest difference is the color of the images. The Nokia appear to take more vibrant pictures. The HTC shots look serious. Or is it just the time of the day the pictures were taken?
Do I need a quick course on photography, or what? :)