Gustave Moreau was a major figure in the French Symbolist movement, whose main emphasis was the illustration of biblical and mythological figures. Moreau's paintings appealed to the imaginations of some Symbolist writers and artists. He is recognized for his works that are influenced by the Italian Renaissance and exoticism. Many of his works are on display at the Musée Gustave Moreau, a museum in Paris dedicated to his works.
More symbolism: https://artvee.com/artist/gustave-moreau/
Well don't leave us hanging...
Might be clichéd but I would have probably gone for one of his depictions of Salome. I always loved Salome Dancing Before Herod, though The Apparition is maybe his most famous work. The picture on artvee doesn't do the latter justice though.
My favorite was always Oedipus and the Sphinx
Angels of Sodom is also very cool.