Peggy, a lighter green would probably work well. I agree about being tired of sewing so much of one color.
I'm going to be really slowing down on this quilt. It's stressing me too much with all the thousands of pieces. I can't keep up and enjoy my family at the same time. I'm going to step away from it for a bit and work on some applique instead. I'll still watch everyone's progress and creativity, so keep it coming!