this is a good idea, I think you would benefit by checking the scale of your golfer in the background though. Good Luck with this, it's a nice looking image. Edit: removing the golfer in B/G is an improvement. As for the shadows well my opinion is that they do not need to be as long possibly...

Good work, just try fixing the shdow a but, by locating the direction which the light hits, 2nd, get rid of the man walking in the distance... or rescale him.. GL.

I removed the golfer but I am not sure why you see the shadow as wrong.

hmmm idea is great,work too just few minor observations...woman is to bright for this lighting,shadow is to define,with this lighting u cannot have that define shadow...if u fix that u could have fantastic work...very realistic image

I made some changes.