How you built it
I created a 3D model of the doll, made a animation, then all the main work was done in Lens Studio.
First, I separated the user's head, then I made it so that this head could be moved using the hand tracker. Then I applied materials for doll clothes. The next stage was the application of wonderful ml components only on the face of the doll, and of course the final color correction
What we learned
I improved my skills in working with layers, render targets in Lens Studio. I also learned to highlight the user's skin color and apply it to the skin color of the doll so that the match is maximum. I also learned a lot of new things for the sphere of 3D modeling and animation