The clouds and the house roof are just about blown out completely. By stopping down the camera maybe you could've retained a bit more detail there. I like the horses & buggy, it looks fun. -BB
I can see the early color look you were trying to achieve. I'm not sure you totally nailed it, but a good effort. The biggest problem spots are the washed out area around the rear horses head and the modern homes in the background. (Not unlike a shot I entered a few months back, of a princess with an office building behind her!)
The carriage is kind of cool, but for me, the sky background looks really...odd and out of place. The light is a bit harsh and seems to wash out part of your image. For me, if the background was a bit different, I would have scored it higher.