You do not need a gown that looks like a wedding dress, since the engagement party is usually less formal than the wedding itself, and a shorter, more playful white dress often suits the occasion better than anything too elaborate
Some patterns like my Vogue one make it pretty easy for you, since the top is already drafted to skim the hips
This light blue skirt features a yellow & green lemon print throughout, a front drop waist design, top ruffle hem, smocked back waistband panel, decorative self-tie front bow detail, lightweight rayon fabric, and functional pockets
These were often boxy and structured, in keeping with the tailored, polished aesthetic of the decade
Ballet flats make it delicate and feminine