Often, it's the artist's use of light and shadow. They might add a glint or a twinkle to the eyes to give that sparkling effect. Also, the shape and size of the eyes can contribute to making them look sparkling.
It might feature bright and shining eyes that stand out, giving a lively and enchanting expression without the typical cartoon exaggerations.
Maybe it's the way the artist drew the light reflection or used certain colors. That could give the effect of sparkling eyes.
Well, it could be the shape and size of the eyes. Round eyes with upturned corners give a happy look. Also, adding sparkles or stars in the eyes can suggest happiness. The expression of the eyebrows can play a role too, arched eyebrows can make the eyes seem happy.
It could be the way the shading and highlighting are done. Maybe the artist uses a lot of light colors and soft strokes to give that transparent effect.
The use of big, shiny eyes with long eyelashes and expressive pupils often makes cartoon eyes look pretty please. Also, the colors chosen for the eyes can add to the charm.
You can start by using bright colors and adding highlights. It helps to give that sparkly effect.
The way the eyes are drawn, like with a certain shape or glint, can give them a pervy look.
Well, when cartoon eyes look drunk, it's usually because of how they're shaped. Maybe they're crooked or have swirls in them. Plus, the way the eyelashes are drawn can add to that effect too.
One reason for cartoon eyes looking clowdy might be a lack of contrast. If the whites of the eyes aren't distinct from the iris and pupil, it can give that impression. Also, if the lines aren't sharp and defined, it can contribute to the cloudiness.
Well, bold colors and unique shapes often make cartoon eyes look cool. Like, big and shiny eyes with bright blues or greens can catch your attention.