If an artist's studio is a window into their world, what does Rose Wylie's tell us about the woman who is about to become the first female British painter ever to have a solo exhibition in the main galleries of London's Royal Academy? The paint-spattered wooden floor is littered with pages from old newspapers, some scrumpled up, the black and white print obscured by vibrant splotches of colour. Wylie tells me when a painting's not working, she scrapes the paint off. "It's constantly coming off, so a lot of paint is on the floor". Brushes - some stuck fast - poke out of paint pots piled across the floorboards, table and chairs. There's also a big bouquet of long dead flowers ("I can't bear to throw them away, they're so beautiful") and a bright pink and blue plastic lobster telephone. Pete, the rescue cat she got more than a decade ago and who she thinks is 16 years old, prowls in, quite at home in the apparent chaos.…