Structured data (schema.org): correct some mistakes site-wide
Right now some artworks have been marked up with the schema type Painting. But lot's of artworks are not paintings.
See this installation/sculpture:
If implemented correctly, this should actually have different markup, ie this:
So if you go to the Structured Data Testing Tool from Google,
You should have @type: Painting change to @type: Sculpture.
This is important for WikiArt because it has an effect to the whole web and creates more context in what is known as the Knowledge Graph