I love post processing. I'm a beginning photographer, so it's rare that I get the shot that I really want. Photoshop has become my best friend until I learn more from all the talented people on this site. Here is what I would do...
remove the weed in front of the 'mouth'
remove the weed from the lower right
tighter crop
balanced the overall color
added more cyan, green and blue to the grass
lens blur on the background grass
sharpened the rock
slight reduction of brightness and contrast on the rock