midi dress with tie back JOIE - Black linen cotton cotton with a double Old Navy Women's Fit &
Description
Unless you measure exactly the same for these three aspects, it is likely that you will need at least minimal alterations so your dress fits correctly

Do not add the extra shoulder sleeve ruffles
The key is to keep the look polished, refined, and suitable for the semi-formal nature of the event

And a college graduation dress has different formality expectations from both

Denim shorts on men are case-by-case

Wear flat shoes that will be comfortable on sand and wont get ruined if they get wet