Every time this image Trending on Photo.net - Where Photographers Inspire Each Other gets a comment, I receive an email.
Not sure why. I do love the image.
Saad, I have a 27" MAC monitor and I can't see it on the image and can barely see it on the enlarged version you posted. Maybe some sand showing through on an incomplete BW conversion. Will adjust. Online no one else has ever noticed this in any of the places it's been posted.