The image shows a close-up of a group of small yellow aphids on a green leaf. The aphids are clustered together on the leaf, with some of them overlapping each other. The leaf appears to be a type of leafy plant, with thin, thin veins running through it. There are also several smaller aphids scattered around the leaf. Some of the aphids appear to be small and round, while others are larger and more elongated. The background is blurred, but it seems to be an underwater environment with other plants and foliage visible.