GCGEPU-071 1951 A Good Sign Gil Elvgren (1914-1980)

The picture has something of this: music, people, wear, woman, performance, dress, party, dancing, love, musician, festival, dancer, theater, two, celebration, actress, stage.
Perhaps it’s a painting of a woman sitting on a barrel with a dog next to her and a sign that says nestor 464 on the side of the barrel.