Mac & Jac black and red party dress

This is a really nice dress by Mac & Jac perfect to wear to a summer wedding. I bought it a number of years ago and kept in my closet for special occasions but I’ve only worn it once to a Christmas party and now it no longer fits me ☹️. It is 100% polyester and has a lining and a rusty red, ochre and black print. It runs a bit small - I think it’s probably a size 4 to small size 6.