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Well you kinda proved my point. It works for Belle because she pulled it off and it's not botched. Those in the pictures are obviously botched/mutilated and looks nothing like what Belle has achieved. When I watched her Youtube video her nose looks as intended exactly the opposite of those pictures of botched unintended jobs.
In my opinion it does make her look young but that's only part of what makes it work....it's the cute "baby kitten" look that her new nose allows. Her overall look is unique when compared to the millions of people you see all over the internet. I think if she hadn't done the NSFW stuff, she'd have a high chance of some big talent agency signing her. In fact she looks like she could play a role in a Disney film.
If you're actually Viet you'd know that Filipinos look quite different from Viet. It doesn't really matter that both are categorized as SEA. There are many different countries in SEA. The Philippines are an island nation and quite far geographically from VN. Heck even Cambodians look different from Viets and they share the same border.
I'm not an expert on fillers but it appears the second picture indicates that the fillers are doing its job which in this case is filling her face. Her face looks puffy and round. In the first picture it appears she has no fillers or they're wearing off which explains why in that image you could see more bone structure, angles etc. Of course this is with the assumption that she didn't lose weight in the first picture compared to the second one.