beautiful colors! i might next time go around a bit and see if you could get a different background. the car and the green building dont really fit with the rooster. great subject!
i think the green building might be ok in the background, if it was more of the picture as opposed to a random object/color that just happens to be in the background. the toxic waste green adds an interesting contrast in color to the rooster.
otherwise, go standard and have normal farm type of background with your rooster