What are those coloring pages that take a long time to color?

Mandala coloring pages are intricate, symmetrical designs that can take hours or even days to color. They are often used for meditation and relaxation, as the repetitive motion of coloring can help to quiet the mind and focus the attention. Other types of coloring pages that take a long time to color include:

- Zentangle coloring pages: These are similar to Mandalas, but they are typically less symmetrical and feature more abstract designs.

- Paisley coloring pages: These feature intricate, flowing patterns that can be very time-consuming to color.

- Stained glass coloring pages: These feature intricate, filigree designs that are reminiscent of stained glass windows.

- Nature scene coloring pages: These feature detailed, realistic scenes of nature, such as forests, meadows, and beaches.

- Animal coloring pages: These feature detailed, realistic drawings of animals, such as horses, dogs, and cats.