Estás guapísimo en esta foto” means “You look very handsome in this photo” in English.
Let’s break it down:
Estás: This is the second person singular (tú) form of the verb “estar,” which means “to be.” In this context, it indicates a temporary state or condition (how someone looks in a photo).
Guapísimo: This is the masculine singular superlative form of “guapo,” which means “handsome,” “good-looking,” or “beautiful.” The “-ísimo” suffix intensifies the meaning, making it “very handsome,” “extremely handsome,” or “gorgeous.”
En esta foto: This means “in this photo.”
Therefore, the entire phrase expresses a strong compliment about someone’s appearance in a specific photograph. It emphasizes that they look exceptionally good in that particular image.
Here are some other ways you could translate it, depending on the desired nuance:
You look absolutely gorgeous in this photo.
You’re incredibly handsome in this picture.
You look so handsome in this photo.
It’s important to note that “guapo” is generally used to describe men, while “guapa” is used for women. So, if the photo was of a woman, the phrase would be “Estás guapísima en esta foto,” meaning “You look very beautiful in this photo.”