how to alter a lace wedding dress How costly/complicated would it be to alter this long-sleeved lace gown?

Turn heads in Windsor's Off The Shoulder Prom Gowns

The case is in good condition with some very light scratches and a few nicks on the bezel

Size Bust (cm) Waist (cm) Hip (cm) Length (cm) S 78-98 62-84 84-108 135 M 82-102 66-88 88-112 136 L 86-106 70-92 92-116 137 XL 90-110 74-96 96-120 138 2XL 94-114 78-100 100-124 139 The fabric is elastic and stretchable, manual measurement, error between 1-3cm is normal 1.Pleasestrictlyfollowthesizecharttoselectthesize.Donotselectdirectlyaccordingtoyourhabits. 2.Thisdressismoresuitableforyourearlypregnancy(thefirstfivemonths)oraftergivingbirth.Ifyouaremorethanfivemonthspregnant,itmaynotbesuitable

The dress is light-colored, and the person has their arms crossed