Overlays
- Three-dimensional digital models
- Overlay of Back (I) and Back (II), 5 cm differences identified
- Overlay of Back (I) and Back (II), 1.25 cm differences identified
Surface Markings
- Lower-left corners of Back (I) and Back (II)
- Upper-right corners of Back (I) and Back (II)
- Casting irregularities repeated from Back (I) to Back (II)
Cross sections
Horizontal cross sections of head
Overlaid cross sections of the head in Back (I) and Back (II), indicating the great changes in form and depth that Matisse exacted. During his work on the second state, the artist removed anecdotal details and made the head far more massive and abstract.
