1.   Art dealers were beginning to realize that paintings could become valuable investments for speculators.

2.   This painting has become a veritable obsession and he has returned to it repeatedly over the past thirty years.

3.   Erotic paintings also became a fine art.

4.   His paintings became more lyrical.

5.   His paintings had become more impressionistic as his eyesight dimmed.

6.   Fairy painting became an extension and reflection of the new forms of theater and thrived as they did.

7.   Here, Cubist paintings could become the visual equivalents of the tilt-a-whirl.

8.   His paintings became larger and more somber, then wilder and more extravagant.

9.   It was about him confronting his own mortality, and the paintings became smelly and foul and really great.

10.   Penitence and conversion paintings became extremely popular.