Ah, I finally like my mountain dunes. I ended up over-dying some green yarn to tone it down in a number of shades. I also added a few curves on the dunes that mimic the curve of the moon and things are looking up. I am going to finish weaving the bottom of the dunes to square up the piece and take it off to see how it looks. It's tough when half the piece is all rolled up on the bottom bar of the loom. I can't tell how tall the mountains should be. I'd like the moon to dominate and be imposing in this piece. Time will tell.