Kappa doing the backstroke

A green kappa (water imp) is swimming on its back with its eyes closed in a light blue, natural forest. A woman in a white dress with long, light blue silver hair is watching, raising both hands slightly in surprise. The background is a forest under a clear sky. The kappa is in the center of the screen, and the woman in the white dress with long, light blue silver hair is in the back right of the screen. The kappa is swimming on its back very comfortably in the river. 16:9 aspect ratio, anime illustration.