A mind-bending Spaniard, an imagistic Puerto Rican and a lush Latvian – the week in art

A revelatory Zurbarán show proves him the equal of Goya and Picasso, Angel Otero takes up a Somerset residency and Daiga Grantina brings nature to abstraction – all in your weekly dispatch

Zurbarán
A mind-bending, revelatory exhibition packed with extraordinary loans from the Prado and other top museums that prove this painter belongs with Goya and Picasso as a Spanish great. Read the review.
• National Gallery, London, 2 May to 23 August