การทดสอบความคงเส้นคงวาเมื่อตัวละครมีอายุขึ้น

A character sheet testing facial consistency of the same [female character] across six progressive age stages, arranged chronologically from [20 years old] to [45 years old]. Consistent head-and-shoulders portrait framing, neutral studio lighting, maintaining identical facial features, eye shape, and bone structure while showing natural aging.