A white lamb stands at the center of a lush green meadow, raised on a red altar and surrounded by kneeling angels in white robes with blue wings. The foreground is crowded with figures in richly colored robes, some kneeling, some standing, and many holding open books or gazing intently toward the altar. To the left, a group of men in red, blue, and green garments cluster together, their faces individualized with beards, turbans, and hats, while a few hold palm branches.

Further back, four large gatherings of figures approach from the left and right, including bishops in blue and gold, women in flowing dresses, and men in white robes, each group separated by rows of flowering bushes and trees. The background opens onto a distant cityscape with tall towers and spires, framed by rolling green hills and a clear blue sky, lending depth and grandeur to the scene. The composition is carefully balanced, with every figure and object arranged in a symmetrical pattern radiating from the central altar and lamb.

Light falls evenly across the scene, illuminating the vivid reds, blues, and greens of the garments and the intricate gold details on the altar and vestments. The paint surface appears smooth and precise, with fine lines used to define facial features, elaborate textiles, and the delicate foliage of the meadow. Tiny highlights on the fountain’s water and the metallic objects catch the light, enhancing the sense of realism and texture throughout the panel.

Every face is distinct, with a range of expressions from awe to contemplation, and the crowded groups are rendered with careful attention to gesture and posture.