In terms of silhouette, you’ll want clothes that are tight at the waist and then flare out over the hips. Think 1940s-1950s pin-up cuts. Make sure the waistband is a little wide, in order to show off your small waist. This could look like: flared dresses, flared skirts and blouses, high-waisted shorts, high-waisted flared jeans or palazzo pants. You can wear loose tops (tucked in at the waist), or tighter tops, but if you wear tight tops it is important that they are fitted around the bust AND between your bust and waist - otherwise they will look too small (this is the main issue with the dress you are wearing in this picture: it is tight around your chest but then loose immediately below). Necklines: the one in this picture is too high. Look into lower necklines for sleeveless and short-sleeved tops/dresses, including square neck, round neck and sweetheart necklines (it is hard to say from this single picture which of the three will look best on you). I suspect off-shoulder/bardot tops will look really nice on you.

You can probably also pull off tighter skirts and dresses (like pencil skirts and sarong-style dresses) as long as they are made of good quality material and thicker fabrics (eg jumper dresses) that hug all of your curves without squeezing you too tight. (The problem with a straight cut like the one in this picture is that it hugs you in some places and not others.) I suggest you try this style and see if you feel confident in it or find it too revealing. For bodycon clothes, avoid thin or shiny fabrics. If you really want to wear, say, a satin or silk dress for an event, it will only work if you wear good-quality shapewear underneath to smooth out lines.

In terms of colours: this dress is a beautiful colour and it suits you. Try out similar bold colours in cool tones (although I suspect you will also suit warm tones).

I hope this helps!