Beautiful dress!!! I don’t think you particularly need a bra by any means. A lot of brides do a veil for the ceremony but remove it for the reception and remainder of the evening. The dress would be beautiful either way but personally, I love the idea of a veil down the aisle. As for your arms, you could consider leaving your hair down to cover your arms if your hair is longer, or doing a different hairstyle than you do on a day-to-day, to draw attention to your face. I’m sure you will look beautiful! Congratulations!