OK, here's a re-edit after the challenge. Someone said they wanted blue, so here's a re-edit with a blue filter instead of the sepia. Looks nice. I tried a duo-tone version, but I think I like the cool look of the blue.
I also lightened the mid-tones a little, and as I'm no longer constrained by basic editing, I've cloned out the lens flare, and the distracting pole on the bottom right. I added a bit of sharpening. Due to laziness, I did the re-edit on the final crop, so there is a bit of extra noise in the image, which is not so good, but I can live with it.