The premiere annual arts event in one of Boston’s most eclectic neighborhoods, Jamaica Plain Open Studios (JPOS), is returning in 2017 for its 24th year. Open Studios is an opportunity to take a rare public peek at some private spaces. The free event showcases the artwork of up to 200 artists at 40 sites including artists’ studios, the historic Eliot School, the Haffenreffer brewery complex and more. It runs from 11 a.m. – 6 p.m.…