Kurkupa

Self-irony. He easily makes fun of himself, isn't afraid to look ridiculous, and that's precisely what makes him appealing.
Absurd calm. Often, in the strangest or most exaggerated situations, he acts deliberately unperturbed—it's one of the main tricks of his humor.
Playfulness. He enjoys experimenting with roles and situations: he seems to be constantly trying out what else can be funny, and doesn't stick to one template.
Easy to communicate with. His interactions with his audience make it clear he doesn't pretend to be a "celebrity" blogger: he responds to comments, supports the meme culture around him, and isn't afraid to joke about himself.
A keen sense of trends. He has a keen sense of what's trending on TikTok and knows how to adapt trends to his own style rather than simply copy them.
Deliberate simplicity. In his delivery, in his dialogues, in his sketches, in his reactions, he deliberately makes everything a little simpler and more straightforward—this is what creates that recognizable vibe.

Hair. One of the most noticeable details is his bangs. They look different in different videos and profile pictures: sometimes neater, sometimes a little disheveled. Seryozha himself mentioned in one of his videos that at one point he was especially proud of his bangs.
Facial features. He has rather expressive, "soft" features. His smile and gaze are often highlighted in his videos—his overall image is quite open and friendly.
Style. On camera, he most often appears in casual clothes—T-shirts, hoodies, and jeans. He sometimes tries out different looks for sketches, but his basic style remains relaxed.
His look isn't particularly complex, but his bangs and demeanor have made him quite memorable. His followers often discuss his appearance in the comments and create memes!