Yeah, it's a touch of vignetting - I find it sometimes helps to "lock in" the image. (I don't know if you know what I mean - can't think of another way to describe it...)
__________________
"I might join your century, but only as a doubtful guest"
tamlin...how do you made those photo turn into creepy thing?..as your last work.."youre not my mom" and "this house is haunted"..do you use a filter?..i wanna do it..but theres no tutorial for this kind of stuff.
yusreey: I don't have a set technique - each image is treated differently. I wrote a tutorial describing how I created "This House Is Haunted" here: http://www.biorust.com/tutorials/detail/262/en/
The background photo in "You're Not My Mommy" was just enhanced with adjustment layers and then treated with the Anisotropic Diffusion filter (Filters > Stylize > Diffuse...) to give it that slightly unreal "painted" look.
__________________
"I might join your century, but only as a doubtful guest"