Is my grad dress ill fitting?

I ordered this (non-refundable) dress for my nursing school graduation + pinning ceremony. I love the color and the look, but I’m a bit bummed about the fit in the bodice. I think it looks nice at some angles but you can see the bulging fat around my arms and back if I don’t try to hide them. The zipper closes fine, and isn’t pulling so I’m not sure if I needed to size up or if that’s just due to back paneling being very stretchy and moldable. I’m also wearing a strapless bra in these pictures and felt that the lumpiness, for lack of a better term, was greatly decreased when I took it off. I have a dusty pink pointelle cardigan I’d planned to wear with it, but if the weather is nice I’d like to be able to take it off without feeling embarrassed. I’ve also got an appointment to have it hemmed (I’m 5’2” and the midi length is hitting a bit too low for my taste) and possibly altered for a better fit if that’s even possible?

I guess I am just wondering if this looks okay as is, am I overthinking things? Or is it objectively unflattering or too small looking? Do you think it could be altered or styled to look better? I love this dress and I just want to make it work!