>>24185670not a photographer, but the main trick is the perspective from wich the photo was taken, since you can see how high the horizon line is, it makes feel like the character is more near to the ground, and the focus from above to top down, makes the upper body bigger and the limbs shorter, as you can see on the 3d model, giving the body a 4-5 head child like proportions. She choose a place with big ass squares as a Pavement too, because using a normal house floor would fade the trick. So about the body trick, the saggy dress plays a big role since she probably arched herself to the max to be shorter, and she can hide the real lenght of her arms in that sleeve too. Moreover the mask hides half of her face, big ass wig to make her head bigger and eye makeup does the rest. The plushie is giant too to make her seem smaller. Moreover I don't think that this girl is taller than 160cm in real life so she has already a small physique. The only thing that is off is that the store windows should be bigger if she really was that small, but is a 10/10 job