Yeohlee Teng was inspired by architect Andrew Geller’s double-diamond beach shack in the Hamptons dunes. “It is both the rigor and whimsy of his work that influenced me,” said the designer. Her beautifully executed shapes had a gentle sway and the beach was reflected in her palette, i.e., a silk dress in a water-color print and a shimmering silk and rayon sheath in ocean blue. Geller’s geometrics were mirrored in carefully measured “flags” that adorned simply cut dresses — one in black microfiber, another in metallic linen. And since one can always count on Teng for terrific raincoats, this season she showed a misty blue polyurethane trench jacket perfect for those overcast days by the sea.