DVD cover

http://akas.imdb.com/gallery/ss/0426396/Ss/0426396/iid_924947.jpg.html?path=gallery&path_key=0426396

The alien head on the side is from the video game Area 51 (2005). In the game cover, you can see the reflection in the alien's eye is of the moon landing. This is because during the game you encounter a studio in Area 51 set up like the moon landing, obviously a hint that the moon landing was a hoax. http://www.gadget-zone.net/www/games%20dvd%20images/game-area%2051.jpg

And the alien down the bottom is from Ridley Scott's Alien (1979). It's what is called a Space Jockey, nobody knows what it really is but best guesses are the race that bought the Aliens into the known universe.