Hi Hirashin,
Yes, these sentences are natural, but only in novels or storytelling. When used in everyday conversations, it sounds like you are narrating a story, rather than speaking naturally to people. Although, these sentences are, in fact, correct; so is the usage is too.
Not recommended for conversing. People would understand what you're talking about, but may find it to be quite a bit strange. It would sound as if you were always talking in third-person.