Just a hint of warming.
Pour custard cream on the image and shoot it through an antique camera viewfinder. A softly washed image that's contrasty, yet soft.
Faded and filled with photographic memories. It has a warm tint, like the paper has yellowed a bit in that shoebox in your attic.
A warm, cocoa scented, monochromatic effect that hints at sepia. Maintains original image tone and contrast.