Annika wears a size 16/18 in the Suzie Dress. For reference, her measurements are:

Bust: 112cm, Waist: 89cm, Hip: 136cm, Upper Arm: 46cm, Height: 172cm

Transcript:

This is the Suzie Dress. This dress is available in sizes 30 to 14. I'm wearing the 16/18, which is my usual size in the Peach dresses. This dress comes in 3 different colours. This is the Orchid colourway. It features some beautiful deep pockets, it has a really nice like billowy panel on the sleeves. It almost gives it a bell sleeve feel and it matches the panel at the bottom of the dress as well. We've got a gorgeous v-neckline. And this is what the dress looks like unposed from every angle. Its very floaty, very comfortable, its made out of 100% cotton so its going to be very breathable, easily dressed up pr down and its going to be the best 'chuck on and go' dress for this summer!