Marryellen, I just missed your post!
I like the dark teal-ish color too-- the darkness of it anchors the lighter cactus print and as you said, it doesn't overpower. Agree that it is restful. The walls of my bedroom are a soft light blue and the wood all is dark brown. I always pick a warm colored bedspread to counteract the coolness from the blue walls, so using a blue with the green would be going outside my "comfort zone" LOL but I think it could look really pretty