Sometime what you buy online isn't quite what you like. Then, I can help you change things around.
This is the finished dress after the alterations. The shoulder straps were different, and it was too long.
First, I cut off the length at the bottom of the main fabric, and retained the frilled part and sewed it back on.
I made a quick pattern for the shoulder strap with the length the client wanted. Then, I used the fabric I cut off to make a pair of new shoulder straps. I think it looks better than the original dress. (I forgot to take the photo of the dress before the alteration, and I don't want to use the photo from the online store website.)