Joan Miró is a funny mix. He’s one of the most acclaimed artists ever to come out of Spain, a mighty personage, and yet the attribute most commonly associated with him is “childlike.” (Some people use it as a compliment, others as an insult.) In this exhibition of nearly 50 sculptures and paintings made in the last 20 years of his life and borrowed from Spain’s national Reina Sofia Museum, the funny modernist’s contradictions are laid even barer than usual, and he’s more likable for it. Maybe he had to make those nearly blank existential paintings in order to be able to find that realm of happy faces and fat footprints smushed into clay. (Seattle Art Museum, 1300 First Ave,, 10 am–5 pm, $19.50, through May 26)