Sistine Chapel, diagram of the scheme of Michelangelo's frescoes.

Vectorised and redrawn to scale/size of bitmap photograph.
This file was derived from:

 Sistine Chapel ceiling diagramA1.PNG: 
CAPPELLA SISTINA.jpg:
Sistine Chapel ceiling diagramA1.PNG: TTaylor
CAPPELLA SISTINA.jpg: Michelangelo Buonarroti
derivative work: Begoon