Hello , How can I write (Beautiful/pretty) and (your eyes are beautiful) in Korean ?
Koreans usually translate (beautiful) into 아름답다 and (pretty) into 예쁘다.
Therefore, (your eyes are beautiful) would be translated as "당신의 눈은 아름답습니다." in formal language and "너의 눈은 아름답다." or "너의 눈은 아름다워." in informal language.