I've had a Lee Big Stopper for just shy of a year now, but aside from a little experimentation, I haven't had much occasion to use it until this month. These are the first two images I've used it for that I'm decently excited about. For the creek image I had a circular polarizer on beneath the stopper in order to clear up the water a little better. Not sure if it mattered much, but I gave it a shot anyways. Enjoy!
The second image was taken on the latter end of sunrise. Even with the clouds I found morning light to be best at that location. 72 second exposure. In addition to the usual cloud-motion and water-smoothing effects, I think the filter's cooling effect is quite fitting for the creek image. I can't wait to print it out and see how it looks!