How to cover shoulders in off-the-shoulder dress?

I'm considering getting this dress by Jenny Yoo (https://www.jennyyoo.com/products/bridal-gown/olivia?type=available&zCountry=US) but I will be getting married in a Catholic ceremony in Spain and have been advised to cover my shoulders. I don't want to give up wearing the style of dress I love with the off-the-shoulder sleeves, but I don't want to be disrespectful either. I'm trying to figure out what I can add temporarily to the dress to make it appropriate for the ceremony. I've considered a big veil that covers my shoulders, but I'm not sure if that is enough. Any thoughts?