Neutral base with red & pink accessories to tone down the boyishness. The Isabel Marant plaid set is an investment piece which you can wear separately as well. I would team the trousers with a simple lightweight crew neck sweater and a mid heel shoe and the jacket with a logo t shirt, a pair of old Levi's cut offs and my trusty white Converse All Stars. The accessories would add a fun element to any simple outfit.
Edit bag J Crew
Paris perfume Balenciaga
Geometric earrings MANGO
Plaid linen jacket Isabel Marant Etoile
Plaid linen trousers Isabel Marant Etoile
Shades Crap Eyewear
Dunk sneakers Nike