"Richard Mishaan's 'Artfully Modern' demonstrates the decorator's spirited and maximal approach to interiors. With a strong background in contemporary art, he is highly adept at layering bold, exuberant pieces and installations within a more traditional vernacular. While his residential projects range from the bright and idiosyncratic to the tonal and formal, it is his embrace of the conceptual that belies his artistic passions. Case in point: a Holiday House Hamptons-desi