Bianca Censori will look picture-perfect for her hubby Kanye West for Valentine's Day -- 'cause she was out getting a spa touch-up the day before! Check it out -- a photog caught her headed out of a Los Angeles medspa Friday looking as radiant as ever ... and showing off what her mama gave her in one of her signature curve-hugging outfits. The architectural designer dolled up in a pair of lavender tights that left little to the imagination and an off-the-shoulder chocolate brown blouse ...