long strapless denim dress Maxi 10 slit at the back to allow for comfortable movement Kenneth Cole | Bustier Strapless

A casual striped option with some ruffled sleeves to make it feel a bit special but not super dressy

Off-the-shoulder organza puff sleeves add a striking touch to this sophisticated trumpet gown

The robe, however, has a more velvety look to it, and its richness, in my opinion, makes it more of a fall/Hallows End evening dress

Derby-Perfect Prints & Colors Floral dresses define derby style

You could go for warmer neutrals, such as skin-tone nudes or neutral-pinks, or an off-white, beige, or ivory shade to style with your light blue dress, it just depends on your personal style

Will empire waist dresses work on a tall torso