This is a nice one!
Oddball cars make fun photographs often. And these are fun looking cars. The photograph is a good very good idea with the two cars. That's a good start. But there are some troubles here straight off. The sun is high noon and harsh, and it shows by burning out the yellow. With no side lighting, the whole photograph loses dimension. Try to imagine this at a couple hours after sunrise? One reason to avoid harsh sun is that you lose dimensionality. And here, that really hurts. Finally, the photograph feels too tight for no good reason. The barn is squeezed to the left edge and the nose of the front car is cut off. The latter might be something to do if it makes the picture better, but I don't see that it does. I think this would work more effectively with a much wider angle coming in more askew to the f/g car, but leaving breathing room. Good idea, fun subject, not quite the right time of day.