St. Vincent wrapped up her critically lauded orchestral tour run in her “adopted hometown” of Los Angeles at the Hollywood Bowl Sunday night, enlisting the venue’s famed orchestra to help turn her discography into a full-on theatrical experience. The concert marked the culmination of a concept years in the making, starting with when the singer-songwriter — real name Anne Clark — was first invited last year for BBC Proms, where she collaborated with conductor Jules Buckley for a concert at Royal Albert Hall. That resulted in St. Vincent’s latest album, Live in London!, which dropped in March, and a now-completed two-month trek that had…