Forests offer great potential for abstract fun through camera movement. All those lovely vertical lines produce great streaks if you move the camera upwards during a long exposure. This kind of thing is pretty hit-and-miss, though, so it generally takes me a dozen or so attempts before I find one shot which has the right mix of basic sharpness and streaking. Too much streaking and you end up with a series of stripes and pretty much no indication of what the subject was. Too little streaking and you end up with what is just basically a blurry picture.
Of the batch of shots I took that day, this was the one that balanced the sharp core and streaking best for me. You can still tell that the green areas are lichen covered tree trunks but the streaking gives the whole image a rather dreamy feel. What do you think?