If you check the high def version on Flickr its more obvious, like the tool you used to select an area to edit. You can see small patches that you have missed If you look closely. See what I mean? lol
Opened up the .psd file to investigate, good eye there Iain I put in another layer with better exposed trees, as the other one is almost completely white with the trees disappearing
Braefoot, Scotland 
looked at the original file on flickr, that's strange cos all I did was change colours and tones no brushie brushie brushie
You still racing at the weekend? I'll give you it then 
Gary.