Floor Length H&M dress

Floor length, new with tags. Dress is in perfect condition, never worn. Brown with pink and purple flower detail, black lace around top. There’s a slit in both sides up to the knee along with a zipper up the side. I am 5’4 and it just touches the ground. I am 125 lbs and it fits perfect everywhere except my bust, which is 36c. It’s a bit too small there.