I am having a hard time deciding if the vignette makes this better or worse for me. Aside from that I with there was a bit more sharpness or contrast in the hay bails, but they really make for nice shapes.
a little more step photography here...the fence line to the right just doesn't add to the picture...a bit more of what is going on to the left would have really made this a nice landscape...right now your main subject is the bails of hay