What kind of art did Cy Twombly make?

Cy Twombly, Untitled, 1986. Acrylic and oil on handmade paper, 21 × 28 in. (53.3 × 71.1 cm).

A large sheet features an expressive abstract painting with thick, blended strokes of green, red, yellow, and blue spreading across the surface.

“The Gift of Drawing: Cy Twombly” is at the Menil Collection through August 9.

What kind of art did Cy Twombly make?