1. Use a mechanical pencil to make a rough draft; use a fountain pen or a fine-tip pen to draw the complete line drawing. The structure of the robotic arm and claw is the biggest difficulty

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2. Apply the first layer of color, making sure the color blocks do not go out of bounds; you can then start blending to create a gradient color.

3. Shape the frog's volume, separate the light and dark parts into layers, and start to focus on depicting the mechanical arm.

4. Finished drawing
Frog