What to wear to a college audition?

Hello! I will be auditioning for several different undergraduate vocal performance/ opera programs very soon, and I was hoping to get a new dress for auditions. I’ve seen a lot of discussion over it, but I was curious of specifics. I posted a link to a dress I was looking at ordering, and I’d like to know what you think! Is it elegant enough? too short? I plan on wearing it with a small pearl necklace, pantyhose, conservative closed toed 1 1/2 inch heels, and my curly hair swept up or to the side. you will see that it is labeled an off the shoulder dress, but as you can see in the pictures, you can pull the sleeves up, which I plan to do. I am only 5’5 so the dress shouldn’t be unexpectedly short. Please let me know! Thank you!

http://www.fashiontofigure.com/catalog/clothing/plus-size-dresses/kendall-off-the-shoulder-plus-size-dress.html

Music teacher here: it’s perfect! Good luck!