High Key, Low key

I loved painting the abstract with the lighter pastel colors. It flowed from the beginning to end and was fun to paint. I call this High Key Tree, light colors on the value scale are called high key. Although this painting has too many dark values to truly be a high key painting. I had so much fun, that I decided to paint a match to it in low key colors, darker values. But this one has been a struggle from beginning to end. I have added a lot of light colors to it and I'm still working on it. I don't think I can hang this painting next to the other one as I had planned. The two styles of the paintings do not match. The next time I want to paint a diptych, I will paint on both paintings at the same time, as if they are one painting.
Just as these two paintings were to represent high and low so was the mood in the studio. Joy then struggle. Painting, just as life, is filled with triumphs and failures.