1. First use the brush tool to draw a simple cactus trunk outline, which should be wider in the upper third, rounded at the top and narrow in other parts.

2. Then add two arms bent upward on both sides of the cactus trunk. Because of the front and back occlusion, the bottom of the left arm is behind the trunk, while the right arm is slightly forward as a whole.

3. Then add some special lines on the cactus trunk and arms on both sides.

4. Then randomly add barbs on the cactus trunk and arms on both sides.

5. Create a new layer, use the pen tool, add the brush color, and sketch the sketch you just drew. And draw some land, draw some graininess on the land.

6. Create a new layer, add the color of cactus, and then paint the color of the land. This completes the simple cactus!

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1, cactus is a cactus plant of Cactus. Tufted succulent shrubs, height 1-3 meters. The upper branches are broadly obovate, obovate elliptic or nearly round, green to blue-green, and hairless; Thorn yellow, with light brown stripes, hard; The barb stands upright.

2, the leaves are diamond-shaped, green, and fall early. Flowers radial; Receptacle obovate, base tapering, green; Calyx-like perianth yellow, with green ribs; Filaments pale yellow; Anthers yellow; Style pale yellow; Stigma yellow and white. Berry is obovoid, with concave top, smooth and hairless surface, purplish red, barbed bristles and subulate spines.