Can my artwork pages look smaller and more minimal, like a foundation's archive?

Yes. Open Art Studio, Site Settings and set Artwork Page Style to Classic. Your Artwork page then lists your collections down the left (A to Z, or in your own order from Collections), and once a visitor picks one, All and the decades under them. The works show as small pictures in three columns, each captioned with its title in italics and its year. Each work's page keeps the same list on the left, with the title, Zoom and previous and next arrows along the top, the picture whole, and its title, year, medium and size under it. To open the Artwork page on one picture before a collection is chosen, set Opening Picture and Opening Picture Caption on the page's Artwork Archive block in Website Builder. Modern, the default, shows larger pictures with the details beside each work.