How to draw meticulous paintings when it rains?

Draw rain lines with wax where it needs to rain, and then take watercolors. If there is wax, it will not absorb water, and the effect of rain will come out.

Fine brushwork is also called "fine brushwork". It belongs to the category of Chinese painting techniques and is symmetrical with "freehand brushwork". Meticulous painting is a kind of meticulous painting, such as courtyard painting in Song Dynasty and figure painting in Chou Ying in Ming Dynasty. Meticulous painting requires "cleverness and precision" (Han Zhuo's Complete Works of Mountains and Waters in Northern Song Dynasty), and meticulous painting can be expressed by ink painting, light crimson, turquoise, resplendent and magnificent, and boundary painting.