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You can start by sketching a basic oval shape for the eye. Then, draw the upper eyelid coming down over the eye, making it look like it's closing. Add some shading to give it a more realistic look.
First, define the outline of the eye. When drawing it closing, focus on the movement of the lids. Make the lashes look natural. Use light and shadow to give it a 3D effect.
Often, a cartoon with closed eyes and a smile gives off a sense of serenity and joy. Maybe they're daydreaming or having a pleasant thought. The smile shows positive emotions, and the closed eyes add a touch of calmness.
Perhaps she's experiencing an emotion like sadness or pain and closing her eyes to deal with it internally.
Closing your eyes in cartoons can show a character's relaxation or daydreaming.
Start by sketching the basic shape of the head. Then, draw the closed eyelids with gentle curves. Add some shading to give depth and make it look more realistic.
Maybe it's tired and needs to rest.
It could be to show a character is tired or falling asleep. It's a common way to convey that idea visually.
The expression of a cartoon kid with closed eyes can range from being cute and innocent to looking a bit mischievous. It all depends on how the artist wants to convey the character's emotions or the story's tone.