Clay animation has an unfair advantage over every other kind: you can see that somebody made it. The thumbprint left in a cheek, the tool mark along a sleeve, the arm that sits half a degree wrong — those are the reasons a plasticine puppet feels warm and a clean 3D render feels manufactured. So this template chases the flaws on purpose.
Your face, hair and outfit get translated into matte modelling clay: soft edges, visible seams, chunky simplified hands, hand-built proportions that are slightly asymmetric. Then the puppet is placed on a real miniature set — cardboard and clay props, practical lighting, dust hanging in the air — and photographed on a macro lens. That last part matters. It is framed as a photograph of a physical object, which is what stops it reading as an illustration of one.
Upload a half-body photo so the clothes make it into the sculpt, leave the ratio at 2:3, and run it a second time with a different photo — the diorama is rebuilt every time, so no two come back on the same set.