First of all, I am 67 and worried this might be "too youthful" for me - but no! This dress is absolutely stunning!
I am hourglass shaped, 5'7 155 and wear a size 10 or 12 in a skirt or pants. I selected a large. It fit perfectly! Very forgiving in all the right places - flutter sleeves, tie at the waist for definition (and the waist isn't too high like other dresses on here!)
The drape in the front is graceful, sheer and covers everything that is unflattering- in my case, my belly. And the ruffle adds a nice, feminine touch.
Hope this helps with your decision.