Nice work Ars Moriendi. Are those shopped? I see what appears to be sharpening in several pictures, and if I had one comment to make it would be that they are a bit over sharpened, enough that background trees look really weird in some of the shots. You may get some mileage out of the unsharp mask instead - it achieves a lot of the same visual effect, but without the edge whiting sharpening can sometimes cause.

As others have said, though, that's some very nice stuff!