a. of or pertaining to the formal aspect of art, emphasizing lines, colors, generalized or geometrical forms etc., especially with reference to their relationship to one another.
b. (often initial capital letter) pertaining to the nonrepresentational art styles of the 20th century.
Well, yeah, sure, I guess. I think it qualifies under paragraph 5, subsection (a). It reminds me strongly of some Papunya Tula or Western Desert art where the strong vertical lines might represent something totemic such as rock escarpments or sand dunes.
It is actually a picture of the side of a (rather dirty) container. And I like it.