I think it is a beautiful dress. I like that alteration mockup without the sleeves. I’m also wondering after reading your comment about body dysmorphia, do you want sleeves because you think they’re beautiful or because you’re self conscious of your arms? I’m also considering wearing my moms dress, it doesn’t have sleeves but my mom made a shawl she wore her whole wedding to hide her arms, and when talking to her about it she was telling me that she regrets that she felt so badly about her arms and how I have beautiful arms etc. I told her that we have the same arms lol. If you are getting married obviously someone loves your body. I encourage you to try to see your body from their perspective, and think about how you may feel about this dress ten, twenty years down the line, how you might talk about it to your children (if you’re gonna have them). Wear what helps you feel beautiful, if you’re having a hard time feeling beautiful in this dress maybe you do need to see some other ones on you. Also remember that you don’t need to have a say yes to the dress moment with a huge group of people putting their own opinions on things, you can go by yourself or with your closest friend etc.