On her third renovation of the Victorian terrace she has lived in for 30 years, Ruth Evans chose a palette bursting with colour to backdrop her vast art collection The children’s nursery rhyme I Can Sing a Rainbow swirls at the back of my mind as I wander the bright and beautiful rooms of art collector and author Ruth Evans’s north London home. Red and yellow and pink and green, purple and orange and blue – they’re all here. Evans has lived in this Victorian terrace for 30 years and this is her