Vintage good Abstract Pastel Drawing on Paper

Vintage abstract expressionist pastel painting on grayish paper, features a non-figurative composition of organic structures in light yellow over light gray background, unframed, monogrammed on the bottom right corner.
Other works by the same artist are also listed in my Etsy shop (last photo). Sold individually.

In very good vintage condition, minimally creased.
Please view all pictures and message me with any good questions.

Measures approx. 12" x 16"H