I checked the link to the polluted city: Kuala Lampur. Really? Well, that is a statement. Reminds me of Soylent Green. I know, silly movie, but still memorable. The contrast between the city in that movie and the euthanasia chamber was lot like the contrast between your city and your imagined paradise. Hard to think people actually live like that today.

Great idea, as always. Startling execution. Thank you for using LIL images in your collage, @anibal-aa. Good luck in the contest!