I thank you all so much for your input. I am trying it all! Here is what the teacher has to say: "However, from what I can see in your photo, I think you need a few more medium value greens and browns. It seems to have too much contrast with so many lights and darks with not enough medium tones. Are those blocks already sewn together? I hope not. I would invest in 2-3 more mediums or just use more of the ones you have and make some more blocks that incorporate them. Avoid making more blocks with a light, med & dark in each blk. Maybe some new blcks would be med/dark/medium. Throw some of those in the mix and I think you'll be much happier with the outcome. Also, how about adding an accent color to spice it up? maybe an orangy brown / rust? or gold? You may just need an additional contrasting color to give it more interest. Often it is hard to see the outcome until you start putting it all together on a board like this. This is why I cannot live w/o a 'design wall'. "