There is a tendency to shoot a fast lens like this at big apertures and close focusing distances to get that shallow depth-of-field effect, but the PL25 is brilliantly sharp across the full frame once it is stopped down to f/4 or less. Great lens!
Great image, Ian. I usually use a wide angle for something like this, so like Nic said, cool use of that lens. I know that m4/3 is going to get a DoF advantage for something like this, but I am curious what you used for the focus point here. Assume the tree?
If you shoot the 25mm at f/4 and focus to 10m you'll have virtually everything from 5m to infinity in acceptable focus. I think that f/4 or f/5.6 is just about the sharpest that the 25/1.4 gets across the full frame, which makes it a great landscape lens at this setting assuming that the angle-of-view is appropriate.