Cloudy Watercolors...of clouds

Ok, so moving on to watercolors! The first set of 10 was supposed to be of skyscapes. I tried to illustrate the coudy, overcast skies of Kirksville the other day, but the darker colors ended up looking muddy. Something still to work on I guess. I think some of the lighter colors and creating trees with a sponge worked well though. Here's a couple of the ones I think are the best or show interesting effects: