New house paint colors?

I have been playing with Photoshop based on this website....

http://www.projectwoman.com/2009/03/photoshop-change-color-of-your-house.html

...to try out different house colors. The results are a little rough, but give an idea of what the house would look like. I am not going to quit my day job in order to pursue a Photoshop career.

Here is the original image




And here are the adjusted images