maybe on how they say it to me and if I did not ask for their opinion, I may feel bothered too. 😔 It may affect someone's confidence too

I find its mostly people who don't cosplay or don't make their own. Its hard to listen to, especially if they point out something you were feeling insecure about anyway, or it was like your first time with a new technique. It's happened to me at least once and I'm sure the person thought they were being helpful, I wasn't confident with foamwork at the time and it really knocked me. I'm all for asking for advice and requested constructive criticism, but outright unsolicited criticism is rude.

If I didn't ask, I am offended. Like maybe the detail thats for you is aweful for me, its the best. Or I just like it that way. Everyone has their style I don't think its cool critize withough asking