Let’s see how to draft the pattern of this short top.
It’s done in silk satin, but you could also use another lightweight fabric: viscose, cotton, linen, or blended one will work fine.
Start from a basic block with darts and regular ease allowance.
Draw also a sleeve whose cap measurement matches the armhole + 2,5-3,5cm ease.
Draw the underbust line 9-10cm underneath bust point.
Check the measurement on you starting at the nipple point, as it depends on the size and on how much coverage you want to have.
On the back, discard the dart volume from the center.