It's lovely! One idea...will you be stitching over some of it? If so, try softening the edges of the grass with some spiky stitches so they edges are irregular, not looking like a round shape cut with scissors. Also, you can put some semi-sheer fabric over anything that is too bold or too bright to soften the look. I think you are doing a great job. Would love to see it when it's sone. Good luck!