Ok I.m going to stick this one in here.
Now I was just out looking to test a 16-35L but found it difficult to find a decent shot.
I got this one and at the time I thought this was the right angle etc......a ND Grad filter was used (I think Hard one)......as can be seen the filter had to come over some of the trees at the edges of the frame.
So how would you have taken it........was there as shot there in the fist place?