Some of these are older, but I was going through my sd card. My water drops were just attempts, for anyone who is curious its an easy rig to do. You need a tripod, a dish filled wtih water, food colors (optional), a clamp, a ziploc bag filled with water and food coloring, take a pin put a hole in it, clamp it over a bin of water and i suggest a telephoto, or a macro lens may work. And if you cant focus on the water at first use milk, its easier to focus.
Did you use a filter to get the waterfall shot or was it shaded and moving fast enough that you didn't have to? If you did use a filter, do you know what kind it was?
Well, no , i wish i had a neutral density filter, which would help me do shots like that in light, but no i had to jack up my fstop to lower my shutter, and it was kind of shaddy But for shots like this the filter you want is a neutral density filter.