I purchased this in M and the cosplay and beautiful! Sizing chart is pretty true to size. Cosplay fits me well, however the shoulder and elbow sleeve area is tight on me, making it hard on arm mobility and comfort. The collar is a bit tight around my neck, but I wore it all day to a convention and was fine. Details are really beautiful and as displayed. I wore a petticoat to give the skirt more volume. I only wore nipple pasties with the dress since it comes with padding, and it lifted my chest up well enough that I don't need a bra. If you want extra push-up, just wear a push-up bra or smth.
I had to pin the apron to the dress because the straps kept falling off and the apron clip-ons are slightly crooked so the apron doesn't line up symmetrical on the back. For the headwear, I bought a puffy headband and hotglued it together because I wasn't planning on wearing the wig. Here are my measurements for reference.
Height: 163cm/5'4"
Waist: 67cm (25-26)
Hip: 90cm (35.43")
Chest: 92cm/36.25"/75D/34D
Shoulder: 39cm
Neck circumference: 12.75cm