My opinion - there are many ways you can define “bombshell”. Is your definition modern? Or vintage?
Either way, for proportions, you might refer to old Hollywood photos. Without seeing a photo of you, but based on your description of yourself, I would suggest looking at photos of Vivienne Leigh, pin-up model Bernie Dexter, and basically, any lead actress you see dancing in 1930s-60s film musicals. Many of them aren’t hourglass, but the effect is faked with costuming, corsetry, or belts
Salma Hayek, most of the actresses in “Nine” (Penelope Cruz, Marion Cotillard, Nicole Kidman, Kate Hudson) might also be good visual references.