STEP 1: Crop your image to the desired size. Duplicate the base and set it to screen. Flatten it when you're done.
STEP 2: Add a selective color layer:
Reds: C -100, M +100, Y +100
Neutrals: C -12
STEP 3: Add this texture by spooky_window. Set to lighten 71%.
STEP 4: Add this texture by spooky_window. Set to Soft Light 100%.
STEP 5: Add this texture by spooky_window. Set to Soft Light 100%.
STEP 6: Optional. Crop or shrink this texture by Sanami276. I laid it over the horizon line just to where the trees are and set it to Multiply 100%. I then blurred the flat edges to blend in with the trees.
STEP 7: I added a skinny tiny text down the middle. Flatten the image and you're done!