If it was possible for polka-dot artist Yayoi Kusama to have a an estranged sibling, I think I've found him circa 40 years earlier in Scandinavia. The Austrian born Architect and Designer moved to Sweden to establish his multicolour modernist style and in turn define the country's own aesthetic. This exhibition explores his delicate original watercolours and inspirations which became the famous colour-block patterns. It also shows his unknown and unseen personal paintings which span Provence landscape to his own imaginary house designs realised in paint. Its a glorious show and collection of life-work by someone who clearly loved churning out art purely for his own enjoyment: "painting made him happy". It's infectious and a must-see.