I really like this scene very much. You did a great job of modeling, texturing, setting up the scene, and have great composition. You have lots to be proud of with this project!
I hesitate to offer my feedback because I do not want to take away from the excellent work you have done with this particular project, although I am not sure of what you originally intended so, I am going to plow ahead anyway. There are a couple of things, in my humble opinion, which seem to be out of place when I give more than a cursory glance at the scene. Is the truck supposed to be new showroom quality ? Or, has the truck been restored to a show quality vehicle? Or, is the scene suppose to be a realistic farm scene?
I don’t know exactly what your are going for with the truck or, what you wish the viewer to see…is it new?..restored?. Are you going for realism? What I am seeing, when I think of a farm scene is a well used working farm vehicle, does not meet the expectation I had from the scene title. But, then again, I am not sure the intent you were going for with the scene/truck. When I view this scene, the truck body is very shiny and reflective; it almost is too much for the shadowing of what appears to be a late afternoon/early evening time of day. For me, it takes away from the reflectivity and shine quality of the chrome wheels, bumper, and other accessories. Even if the truck had been freshly washed, I don’t believe it would be this shiny unless the truck were not a working farm vehicle and kept in a garage for Sunday drives only.
Also, I think I would have to do something with the shadow on the building. For me, it should include some semblance of the cab of the truck against the house/building, which might be hard to do with Blender’s lighting. It’s difficult to tell but I am assuming the truck is black? It is another one of those things that makes it not quite realistic to me. I remember some of these old trucks and mostly I remember blue, turquoise blue/green, or red ones with white painted bumpers rather than chrome. LOL of course, I had to do some research to make sure my memory isn’t to faulty! Here is a couple of reference pages you might be interested in for future use.
http://58classicchevy.com/1958-chevrolet-truck
1958 Color Codes - Chevy Truck Paint Cross-Reference
http://paintref.com/cgi-bin/colorcodedisplay.cgi?model=Chevy%20Truck&year=1958&con=oy&rows=50
Again, I think you did a most excellent job on your model, texturing and composition. I truly hope to see more of your work in the future.