this is Night Tree in "lime peel" by Amy Butler, part of the Soul Blossoms collection. It's almost a monochrome scheme, but if you look closer your see three colors, near each other on the color wheel. Warm yellow-green, warm turquoise, warm golds. The harmony is soothing, and the blues are restful without being boring, because of the warmth. It feels alive, serene, almost moonlit.