The image is a close-up of a yellow cactus flower at night. The flower is in full bloom, with its petals spread wide and its center a bright yellow color. The petals are elongated and have a pointed tip, with a few small stamens protruding from the center. The center of the flower is a darker yellow, with small yellow stamen scattered throughout. The background is dark, making the flower stand out even more. The cactus plant is growing in a garden, with other plants visible in the background. The image is taken from a low angle, looking up at the flower.