Final answer:
Raphael's works were remarkable due to their natural and complex compositions, mastery of aerial perspective, and pioneering use of glazing and underpainting.
Step-by-step explanation:
Raphael's works were remarkable for several reasons. First, his complex compositions seemed natural to the eye and were effortlessly rendered. Second, he was a master of the new technique of aerial perspective, which added depth and realism to his paintings. Lastly, he pioneered the use of glazing and underpainting to create luminous effects and enhance the overall beauty of his works.
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