So to the Prado and Velazquez.
Reckoned by some to be the worlds greatest painting it remains the subject of much debate, featuring as it does the artist as the star of the picture. He has painted himself painting the portraits of his royal patrons who are relegated to a small reflection in a mirror. There is no space here to go into all the complexities of the picture but you may easily find plenty on it through google.
Mrs G contemplates the picture, which as you can see from the large expanse of reflected light is not displayed as well as it might be.