Beautiful navy blue 2-piece prom dress

I usually don’t like 2 pieces for prom but wow, this dress got me a lot of compliments and it was so cute. The top is a lace up back and it has good leafs all throughout the back. I am 5’7 and I found it just a bit long when I was trying to dance. I never got it altered and I originally paid $250. The only odd thing about this dress is the top is a size 4 and the bottom is a size 6. The top however os adjustable.