Click on a region in the picture to color it in with the selected color. Click on a color swatch in the palette to select a new color. The currently selected color in the palette is indicated by a black rectangle drawn around it. When you click, the point that you're clicking on is at the tip of the arrow or the tip of the pointing finger.
Frans Hals: Portrait of Descartes
Frans Hals (c. 1582-September 1, 1666) was a Dutch artist known for his portraits. The coloring page above is Hals' oil painting of Descartes; it was painted about 1649.