"I painted using AI"

You should indicate that in the title.
And also choose the correct category (western).

Base +29, fernendoff +8, anonymousmonarch +6, SmolCrowBro +6, Maikyboy +15, ThatStrangeDoll +6, Heliamphora +6, farfetchdfreak +10, kotyc +6, AmazingRainbow +7, ConstantEcho +7, Kamikazeon +6, BobDringus +6, and 2 more...

Way to go, you fucked it all up

Base +7, olga122334444 +6, anonymousmonarch +6, SmolCrowBro +6, Maikyboy +15, ThatStrangeDoll +6, farfetchdfreak +10, AmazingRainbow +7, wumboligy +6, Nymesiss +6, Kamikazeon +6, krappycone +6, Dokiliny -6, and 1 more...

Painting seems fine to me.
Thanks for sharing.

Base +6, farfetchdfreak -10, NotAMage +6, AmazingRainbow -7, Dokiliny +6

e como eu faço isso exatamente?

e serio e bem confuso.

não entendo nada desse site.

Base +1

For the title, if it's a colorization by someone other than the artist, you should add the indicator [Colorized], or in your case [AI Colorized], at the end of the title.
Note that you can still change the title up to 24 hours after publishing the gallery if you go to My Uploads.
After that the only way to change the title is to make a rename petion, see https://ehwiki.org/wiki/Renaming

For the category, you can select when you create the gallery for the first time. By default it's Doujinshi.
Content from western artist should go to the western category, regardless of if it's a comic, an image set, etc. Only exceptions are 3d content, ai generated content and non-h western content that go to misc. Read this for a detailled breakdown: https://ehwiki.org/wiki/Gallery_Categories
Like the title, you can change the category yourself up to 24 hours after creation.
People can also change it by upvoting the reclass:western tag enough like it happened here.

As for tags, the most important thing to keep in mind is to only tag stuff that appears in enough quantity in the gallery. Don't tag stuff that only appears once or twice (like the naruto characters here). There are some exception to the rule, but I won't go into details here: https://ehwiki.org/wiki/Gallery_Tagging

Basically, besides the content of the gallery itself, everything can be fixed by the community if you do it wrong, but it's not a reason to not try to at least do thing correctly in the first place.

(Also, you should try to speak in english since it's an english gallery, it's okay to use a translator if it's help)

Base +29, AmazingRainbow +7, ConstantEcho +7

espero ter feito tudo certo agora.

para ser honesto não entendo nada desses tags de oriente e ocidente.

a tambem ainda acho estranho publicar algo e so depois manualmente ir adicionando as tags.

e não entendi muito bem a parte que voce disse de não marca as imagens.

Base +1