I will confess to "hunting the cracks" when perusing an exhibition layout - the camouflaging of the joints on some layouts is almost perfect now.
I forget the name, but I do remember one where the joints were only traceable on the front boards - even when you could see where they started, they were not visible.
I am also often (internally) critical of the placement of farm animals - however, yesterday, I saw about eighty sheep in a largish field, scattered randomly, but all facing in exactly the same direction - it would have looked totally 'false' in a model context.
I was on the M40 at the time and, so, was unable to take a picture.....