Attached in the poster there is this subtle paper wrinkles. Looking for the tutorial. Can anyone name it or attach the tutorial?
Find a white wrinkled paper texture
The one that was used in the example above came from textures.com
Put the wrinkled paper texture above the picture.
Use a blending mode to get rid of white and keeps the wrinkles.
You could change normal to one of the darken modes like multiply or you could choose from one of the contrast mode like soft light.
If the result is to strong change the opacity to 80% or any other percentage.
Thank you so much Carlo