simple. nice. I like this. I have thought about taking this pic 1000 times, but I didn't think it would look good. I guess I was wrong. I wonder if a little more contrast would have helped.
Nice composition; I think i would, for this site at least, have tried to work the sky into a more solid blue: this seems a bit washed out (as it probably was, in fact). It could simply be a matter of pulling the overall exposure down some in conversion/processing - there's enough light in the contrails to cope with that for sure.
simple and elegant. what's not to like? sure, there are a lot of things you could do differently, or do to this image, but for what? this i perfect just the way it is. good luck!