A walk on the beach

Beautiful mood, and the composition is pleasingly minimalist.  The one thing I'd try (either at the time of the shot, time permitting, or in post) would be to move the two birds closer to the left of the frame to provide a nice counter-balance to the man and his dog.    Although, the current composition does create an implied triangle (man/dog, birds, left side of shore), which might be more compelling than the two-point composition I suggested first.  

Regardless, a very evocative image.  Well done. :-)