Completed it in blender 3.1.2 (low version can be opened, when there may be an error), low-poly, UV-divided, no texture, cartoon 2D material, Eevee rendering.Use blender's Rigify for fast binding (non-professional binding, purely for pose), not collapsed, modifiers retained, (pose keyframes are set, all bone controllers are selected, Alt+G and Alt+R can be restored Go to Tpose, or delete the bone modifier directly), and make the expression animation of the eyes and mouth, which can be debugged through the head control bone controller.You can get more information from the preview pic.If any question please write to me.