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diverse subjects, such as running water, growing plants, and human anatomy. Leonardo's depiction of the "Star of Bethlehem" plant has moved away from a previous nature study and stylizes the structure of the plant. The flowers are growing out of a draped ring of leaves. This plant appears in both studies of the kneeling Leda. Growth and birth were not merely the theme of the Leda compositions, but reflected the more general interests of Leonardo during this period. In the animal studies Leonardo displays significant delicacy in the modeling of the outer surface of the horse, and this combines with a confidence in its figural design. Since the Adoration of the Magi Leonardo had become Study of horses, 1490 particularly interested in horses, and this is Royal Library, Windsor documented by a large number of studies of their proportions and movements. Leonardo da Vinci was an Italian Renaissance architect, musician, anatomist, inventor, engineer, sculptor, geometer, and painter. He has been described as the model of the "Renaissance man" and as a universal genius. He is known for designing many inventions that anticipated modern technology, although few of these designs were constructed in his lifetime. In addition, he helped advance the study of anatomy, astronomy, and civil engineering. Renaissance humanism saw no mutually exclusive polarities between sciences and arts.