The image shows a close-up of a tree trunk covered in a thick layer of yellow lichen. The lichen is growing on the bark of the tree, which is dark brown in color and has a rough texture. The tree appears to be in a wooded area, as there are fallen leaves and twigs scattered around the base of the trunk. The background is blurred, but it seems to be a forest floor with more trees and foliage. The overall mood of the image is peaceful and serene.