Autumn Circles

Here is the latest 'penny rug' but I see it more as 'autumn foam' (like summer sea foam) or bubbles/baubles. I have made several sizes of circles to fit in random, empty spots. This may sound funny, but I have such a close, personal feeling towards these colors. They please me... they give me a 'warm-fuzzy' feeling! It's kind of crazy! In the past few years I've been totally drawn to earth tones - where as for most of my adult life I've 'rejected' them... after growing up in the 70's. There must be a connection to emotion, memory and color. I wonder if any one's written about it!?