What a lovely shot of the city. I think if the litle chap on the boat had been a bit further across the searching element would have been stronger and you'd have placed highr, maybe. What do I know? Not a lot.
Ahhh the superimposition of a city!! I really like this concept. For me though more photoshop work to make the background more wispy. The entire city is all one foggy level and I have never seen that happen in person. However matched beautifully and as I said like the concept a great deal.
Excellent contrast between "past and future" elements; I like how the treeline roughly lines up with the tops of the buildings to form a diagonal path through the picture. Faded nature of background works well ... going by the image on my monitor, I'd probably experiment with bringing a little more saturation (increase yellows?) into the trees.
The DPC size doesn't do any justice to it. I love the composition. The clash of the city in the background and the island (or whatever it is) is incredible. Perfect challenge theme interpretation. One of two 10's I gave.
I like the fogged city background very much, if you could have made the foreground pop more it would have really helped the image IMO, as it is it feels lacking in a main subject.