I was fascinated with how the colors of the feathers change in the different lighting conditions. The same feather can look green, purple, amber, gold, fushia, turquoise, etc. depending on the source of light and how the feather is moved around. I tried to capture it using iridescent paints that also change colors in the light, making it a fascinating painting to look at.
From a spiritual viewpoint, it reminds me of the infinite changing colors and glory of God. In Heaven, there are angels assigned to only say one saying, Holy, Holy, Holy, each time depicting a different aspect of His glory throughout eternity. Similar to turning a cut diamond. Each time you turn the diamond, you see a different view and new way of looking at God's splendor and holiness.