Hello! We are working on a renovation project here and need some feedback regarding paint sheen for this wall molding we have along our staircase. Currently all the trim pieces are painted satin and the center boxes is where I need some help!

Should we do a matte finish inside for contrast or keep satin throughout for the full wall molding look? Would the material difference of the trim to drywall make the satin sheen noticeably different? We are using BM Simply White. Thanks!