The landscape is originally a painting from Aleksey Savrasov - check out his amazing work: http://www.deviantart.com/users/outgoing?http://www.wikiart.org/en/aleksey-savrasov/lake-in-the-swiss-mountains-1866
The robot is from the movie The Iron Giant by Warner Bros.
The landscape work is in Public Domain, according to: http://www.wikiart.org/en/aleksey-savrasov/lake-in-the-swiss-mountains-1866
This is not an overpaint, I painted the landscape and robot based on the existing landscape image, if you compare the original with this, you will see the many differences. I learned a lot by doing this series of images.
Hope you like.