1. Use a pencil to sketch the basic outline of Fujian earth building, including a circular bottom and a tower-like top. You can draw a simple circle first, add a rectangular or hexagonal frame on it, and then gradually add details.

2. Draw a small circle in the center of the top, and then connect it to the surrounding walls to represent the central patio of the earth building.

3. Divide the wall into several small squares to represent different rooms of the earth building. Details such as doors and windows can be added to each small square to highlight the national characteristics of tulou.

4. Use a thin black pen to draw the outline and details of the unearthed building, including windows, ladders and roofs, and emphasize the firmness and heaviness of the unearthed building.

5. Finally, use colored crayons or other pigments to paint the earth building with dark brown or gray to create the original and simple feeling of the unearthed building.

It should be noted that when painting Fujian earth buildings, we should refer to physical pictures or related books and other materials to more truly show the shape and characteristics of unearthed buildings. At the same time, we should also pay attention to the composition and proportion of the picture to make the whole picture more harmonious and beautiful.

Expand:

1. Appearance: The appearance of Fujian Tulou is round, semi-circular, square, quadrangular, pentagonal, chair-shaped, dustpan-shaped, etc., each with its own characteristics. Tulou was square at first, solid and firm. Because the square earth building is directional, the corners are dark, and the ventilation and lighting are not very uniform, Hakka people design a round earth building with good ventilation and lighting. Among the existing earth buildings, the round one is the most striking, and the locals call it round building or round village.

Function: Fujian tulou is a collective building. The most common round building in tulou is about 50 meters in diameter and three or four stories high. There are more than 100 houses, which can accommodate 30 to 40 families and 200 to 300 people. Food can be piled up in the building, livestock can be raised, and there are wells. In addition to people, tulou can also defend against the enemy, just close the gate and hold it, and tulou is like a strong fortress.

Third, material: the wall of Fujian Tulou is thick at the bottom and thin at the top, and some of the thick parts are as high as 1.5 meters. When tamping, first dig a deep and large wall ditch in the wall foundation, tamp it, bury it with stones as the foundation, and build the wall foundation with stones and mortar. Ramming the wall with sandwich panels. The raw material of the earth wall is mainly local clayey red soil, mixed with a proper amount of pebbles and lime, which is repeatedly mashed and evenly mixed to make the so-called "cooked soil". Some key parts should be mixed with appropriate amount of glutinous rice and brown sugar to increase their viscosity.

4. Layout: The round building starts from a circle center and spreads out layer by layer according to different radii, just like the water waves in the lake, which is very spectacular. Its center is the family ancestral hall, followed by the ancestral hall, the veranda and the people living in the outermost ring. The whole tulou room is the same size, with an area of about 10 square meters, using the same stairs.