Hard to tell if it was really foggy, or this is overexposed. I kind of wish that the thing on the wire wasn't so much straight above that antenna, dunno if that would have been possible.
Interesting idea. I think a couple of things might have made it better -- cropping (read the discussion of this in the forums) it differently to get rid of the tree limbs. Also, it is really grainy on my end. If you used a digital zoom, that might have caused it, or a low res. Also, for the challenge, take advantage of the 150 K, you still had some you could have used (I think this has been discussed in the forums also, if not post a question, and they will give you good ideas).
Even though the angle of the photograph is up, it doesn't convey to me the impression that the camera was on or close to the ground. I know from some of my photos that it can be on the ground, and not look like it, but I think the final impression conveyed is what counts. Has the picture been compressed a little too much? It doesn't seem very crips. Love the idea. Where is this?
contrast and exposure -- I'm guessing that you had to do some interesting metering or something to get the detail on the high wire act, but that left everything else kind of washed out -- not sure what advice to offer -- maybe a tighter zoom on the subject so there's not so much sky?
I think this could have been a really impressive photo with a little added clarity and possibly some of the ever elusive weather cooperation. The tightrope wire appears very jagged and the bank building is quite grainy.