The site is petarostojic.cl. When I google it from smartphone I get as a suggestion of destination a partial capture of the signature and the text “intro – Petar Ostojic”, when the correct thing would be: a small portrait photo and the text “Petar Ostojic – Circular Economy from the Wilderness of the world”.
“intro” is the name of the cover page, and should not appear. Randomly appears, instead of its photo, some outstanding image of one of its entrances.
I will appreciate some guidance
I’m not too sure what you mean. Are you talking about the description excerpt that Google displays? Usually this is largely up to them, but you can use a plugin like Yoast SEO to set a specific one, which Google may or may not use.