The Width and Length Comparison in National Portrait Gallery by Wenqin Lu

When we visit the painting exhibition online instead of in the museum, although we will see pictures and some descriptions about its size, such as 'Frame: 57.2 x 46.7 x 5.4cm (22 1/2 x 18 3/8 x 2 1/8')', it is still difficult for the audience to imagine how big a painting is. The dataset includes 150 portrait paintings which are on the physical exhibit with CC0 media access. By comparing the length, width and the area size of each painting, we can know the size relationship between each painting, and I also have some questions, such as which is the largest painting? The smallest one? What is the ratio between them? What is the most common portrait painting size? ...