if you're rendering with multiple lights, you ARE allowed to turn off 'casts shadows' on some of them to get the idea of one light source with bouncing light...

also please do increase your anti-aliasing quality... seeing the jaggies on the roof and front fence are kinda distracting.

otherwise, in order to attempt to duplicate the image you saw you'll need a lower camera angle, a different background color, and brighter and warmer colored lighting. that should be enough for starters.