Yep, art day again. This time, I decided to use color, although all I have are basic colors like what your teacher gave you in the second grade.
This turned out to be tall grass. I laid down the yellow first and then the blue. And then on the saturated surface, I added a horizontal strip of green. As it bled down through the water, I saw it as a reflection of grass, so I added that above the water line.
This is a hillside with trees. I used less water, so there wasn't as much color blending. I decided I missed random blending here, so to add texture, I stamped the entire surface with a wad of dirty masking tape.
And this is an apple, in case that isn't clear. I stamped this with another wad of masking tape, and I like the results. It may not be a great painting of an apple, and it may well fit the second-grade paints I'm using, but I think I've got a good start in figuring out how the paint and water and paper work together.
All of this experimenting could go on for years, I suspect, because I doubt anyone really masters any medium, especially when they work on their own. Go paint something.