Mkay, so, I recommend layers, and smoothing first off. Although I'm not the best at explaining I'm sure you can find someone who can.
Secondly, You asked for fluffy/tuff help. what you have so far is good, but I think it should be facing down rather than up like in mine. And then, just is just in general, experiment! Play around, go wild in the Oekaki! (also I don't recommend posting those times when you just play around) Then you can get better used to the tools and things you can do with it. enjoy, and sorry I'm not the best for red-lines!