Technically, the photo needs a lot of contrast boost, it's kind of badly underexposed (right half of the histogram is empty). There are some disturbing "elements" for me there: the reflection of the window (you could easily clone it away), the roof (or whatever) on the bottom left (you could crop it) and the red balls on the middle line (cloning). Probably it would have been challenging to change the composition/point-of-view a bit, so the lines don't finish in the middle of the photo (bull's eye effect), but try to use the rule of thirds somehow. I would also like to see more trees on the bottom and less sky/fog on the top.