BALTIMORE — A three-ring circus. That’s what the first work in Tschabalala Self:By My Self at the Baltimore Museum of Art may recall for some. In this wall installation that includes “Two Women,” “Two Women 2,” and “Two Women 3,” the artist juggles gigantic silhouettes painted on the wall behind the three giant paintings, delightfully wrong cotton candy colors, ballooning butts, and painted whispers among friends you can hear from the parking lot. Yet all this big, sonorous activity was inspired by an artwork of slightness, silence, and calm.