amcatanzaro, I think your colors are working out just fine. I can't wait to see it when it is finished. I love the blue and green together. And the gray works great as a light.
I'm a bit worried about mine because a lot of my fabric reads as medium. I'm hoping that the difference in the colors will help. We will just have to see. I am going to use what I have at home! (No shopping for fabric right now.)