I finally sucked it up and dug into my stash, which fortunately still has a lot of choices in the color palette we were given despite all the scraps I've been using lately. One of the problems with me and improv is that straight lines are my friend. I like things neat and orderly and improv doesn't really lend itself to neat and orderly. You can tell by my first block that I had a little trouble breaking away from straight lines.
For my second block though, I pushed myself to be wonkier and do I like the results a lot more. Just a little angle here and there made it more interesting.
Now on to the July blocks which are right up my alley - neat and orderly!