Hi, Davide This shot is actually two frames instead of ND grad, manual exposure 1/25s and 1/2s, f11, polarizing filter. The rest is superb lighting conditions. For web picture this small I did not even use RAW files, just med jpeg with levels, saturation and UM adjusted. By the way I loved your slinky flowers, awesome effect. And F110 is fantastic too, showing your great creativity.
the trees have a very nice silhouette very good detail! could u write more about exposition, aperture, time.... i really like the rocks exposure have u used some nd grad filter?