I am working on presenting wrinkles on a sponge pillow covered by fabric, goes like this.
However the wrinkles are too subtle to see, no matter how I change the parameters. 
It can be confirmed that there are wrinkles, maybe the workflow it self is fine? How to make it more obvious? What should I do?Any tips would be much appreciated, thanks.
HIP file linked below Your text to link here… [www.dropbox.com]
Cheers
