Long Sleeve Beaded Party Dress

NWT gorgeous beaded mini dress with sheer long sleeves, with beads and sequins. This dress reminds me of the long sleeve, beaded Balmain dress Kim K wore and had the effect of a beaded Herve Leger style dress, minus the bandage dress feel. Bought from Forever 21, their higher end designs- good quality, never worn. Size on tag is Large but it seems to run small. Size M or 6/8?I’d say.