This won't be too in depth of a post, but here's my next pass on grass. I wanted it to look more natural and wild. My most recent version of grass had variety, but it was still too even. I went with thinner and taller blades with a more realistic feel. The colors are more muted as well.
My next task will be creating other various shrubbery for the environment, including flowers, one-off plants, and bushes. After that's completed, I'd like to go back and rework my trees a little more.