After decades of setting the tone for designers and tastemakers at his iconic Culver City showroom, Shane Brown has planted his next big idea firmly in Santa Barbara County. Alongside his wife, Kristine, Brown has unveiled The Well Gardens, a nine-acre Carpinteria property across from the Santa Barbara Polo & Racquet Club that feels less like a retail space and more like an escape. Fans of Brown’s work — and mine — may already know his earlier W…