Beuys’ dreams, bejewelled paintings and Avatar for art lovers – the week in art

The watercolours behind Beuys’ sculptures are revealed, Soheila Sokhanvari commemorates Iran’s feminist icons and Sahej Rahal creates a digital world – all in your weekly dispatch
Joseph Beuys: 40 Years of Drawing
Drawings and watercolours that reveal the myths and dreams behind this great artist’s sculptures.
Thaddaeus Ropac, London, from 19 January to 22 March.