In the living room of this Sullivan’s Island, South Carolina retreat, a duo of Dmitriy & Co. Magari sofas, flanking an Andrianna Shamaris coffee table, provides ample seating for the family of five. The room’s semi-gloss ceiling—painted in Benjamin Moore’s Super White—offers a luminous contrast to soft plaster walls by local artisan Suzanne Allen. Designer Jenny Keenan commissioned the hanging lantern through The Urban Electric Co.