02 Rublev Mother of God 2 0211 5.4 Sepia ink draw 0212 7 Lights system 0213 10.0 Lights system 0214 10.1 Form 0215 10.2 Brightness 0216 10.3 Connecting zone 0217 10.4 Enlivening lines and area 1 0218 Original Tretzyakova gallery Moscow 0219 Original Tretzyakova gallery Moscow detail 0219bis don Gianluca Busi Rublev Mother of God the face detail