>>30854731Gura. No hate, I don't really watch her, but she's alright, decent streamer.
Still, her design is probably the best for a couple reasons.
Cute small girl design, not sexualized though and doesn't turn normal people away. Color scheme isn't all over the place and appealing, blues being soft. Shark is unique enough (not overused like cats or whatever else) and well liked among lots of people. I think a big thing people overlook though is just that, her overall design, specifically her clothes, aren't super complicated, pretty simple without being a detriment. Any artist can redraw it without spending too much time on it compared to a ton of the other talents. Also when everything gets super complicated, they all kind of mesh together, whereas her design stands out more just being "shark hoodie" in a mascot sort of way. Like Mario I guess, the design is simple, but the outline stands out enough to become iconic.
Combination of that, and being a decent streamer led to her absurd rise (past life likely played a role too).