My first impression on this image was that I liked the lines. Good use of rule of thirds on the center part of the pattern as well.
Overall though there are some issues with this image that I had. The focus and sharpness of the image is a bit soft. But this is probably alot due to your initial image size from camera. I would think that having to upsize like you said you did would really affect the end quality. I think I also would have liked to have seen just a bit more on the left. I think its cropped just a bit too tight.
I think you scored right about where it should have for the FS. It doesn't have alot of WOW power and the technicals aren't the best. Looking at your portfolio I can see you do some excellent work with portraiture. I think you may have scored better with a portrait image over this entry here. Sorry I cant be more helpful. Good luck with your future entries!
Ever get the feeling that someone's watching you? What a great composition - I might have tried cloning out the two lights at the bottom left to keep them from distracting from the main focal point, but this is nevertheless an arresting abstract.