The completion of this piece takes me 14 months and half way through the Chroma series. In addition to Green I've finished Chroma: Yellow, Chroma: Blue and Chroma: Orange over that period of time. Up next is Chroma: RED. I'm still very much enjoying the research which goes into each module of each color and the challenge it is to make them all complex and fun. They all measure 72" x 45". Storage is becoming a problem which needs immediate attention!