I remember the term ombre originally from a hair coloring trend - see Drew's locks.
The idea is that the color fades from dark to light (or it's a cost-effective way to grow out your hair color and call it a trend!). Generally, anything with color fading from dark to light, or light to dark, in approximately the same general color family, can be considered ombre. Well, this trend has hit the wedding world full on!
I love the cakes, but it might be a bit much for a dress. Would you dare to wear an ombre dress for your wedding? Or dress your bridesmaids in ombre?