Atmospheric effects, watercolor

I am always watching the clouds, and with this wet spring we are having, they are always there in some form or another. I thought I would try to recreate a rainstorm, with different kinds of clouds, cirrus (the high whispy ones), and cumulonimbus (big towering ones). I worked with very wet paper, letting the paint move around freely, hoping for some happy accidents.

The cumulonimbus clouds were actually  "blooms" or "cauliflower" caused by not being patient and trying to add more paint to an area that is still not dry.  By adding wet paint (or water) into an area that isn't as wet as what you are adding, it creates a bloom. Some people love the affect while some don't. I used it as a happy accident.

This second piece is more of the same, but I tried to encourage the paint to move the way I wanted it to in order to get the desired effect of a rain cloud passing through.
I used similar color pallettes in both with Payne's grey being my cloud color of choice. Which one is your favorite?