I had never thought of it as waves, but I like that.
I've tried on a million and one dresses many with a similar top (sweetheart neckline), many with similar shapes (sheath/a line), many with the same chiffon fabric. Basically everywhere I went just said to try on similar styles since they didn't have the exact or extremely close styles. I also tried a bunch of other styles. Some I did surprisingly feel overexposed in, but I think the plunge on 4884 is modest enough... It's just a bummer to not be able to try the exact ones, but I didn't find any that I liked as much as these two.
Some keep the opinions coming it's very helpful!