What happened here

This is my entry for Fotolia Stockpocalypse contest,you can obtain information from the site here [link]

Description: well this is what happened after an apocalypse due to a alien invasion, good aliens come to earth by a call for help but it is too late

List of the stockproject.deviantart.com images used :
Familiy stock [link] [link]

Smoke [link]

Personal and original material
Rocks and sky [link]

Process: to the back ground I used some photographs that I had taken some time,[link] the earth and the sky, I changed the color balance to look more orange and apply some effect layers like multiply and overlay, the hard part was the illustration of characters and objects, the aliens, skeletons, ,mountains and moon, and the spacecraft, to do the ship went down the opacity to make it look transparent like holographic, I hope you like this entry for the contest