I've been busy trying to figure out gouache and watercolor.
And the more I'm using both, the more I like the opaque quality of gouache. I also like how you can just forget what is what and use both mediums interchangeably.
Still, most of the sketches end up sucking big time. But every once in a while, I manage to produce something decent.
Like these two...
From life:
From photo reference: