Step 1: Outline Basic Shapes
- Body: Draw a large oval for the octopus’s main body near the top of your page.
- Tentacles: Below the body, sketch out eight long, curved lines extending outward to represent the tentacles. Make sure they fan out in different directions.

Step 2: Add Details to Tentacles
- Shape: Turn the curved lines into long, slender rectangles to shape the tentacles.
- Suction Cups: On the inner side of each tentacle, draw small circles or bumps for the suction cups.

Step 3: Draw Facial Features
- Eyes: Inside the oval body, draw two large, round eyes. Add smaller circles inside for pupils to give them expression.
- Mouth: Below the eyes, draw a small ‘u’ shape for the mouth, giving the octopus a friendly look.

Step 4: Refine the Octopus Body and Tentacles
- Texture: Add small, curved lines on the body and tentacles to give the octopus a textured look.
- Tentacle Details: Refine the shape of the tentacles by adding gentle curves and thickness variations to make them appear more realistic.

Step 5: Add Shading and Final Touches
- Body Shading: Shade the bottom of the octopus body lightly to add depth.
- Tentacle Shading: Add slight shading on one side of each tentacle for dimension.
- Highlights: Add small highlights on the eyes to make them stand out more, giving the octopus a lively appearance.

And there you have it—an octopus ready to swim in the sea! Feel free to add colors to make it more vibrant.