Is water rhyme and breeze an idiom?

no. According to the official website of Jingmen City Commission for Discipline Inspection and Supervision. The word "Shui Yun Qing Feng" comes from "Clean Jingmen Jingmen Water Group:" Shui Yun Qing Feng "Clean Culture and Education Exhibition Hall was officially completed". In this report, the word was invented by the author. After searching Ci Hai, the idiom was not included, so "Shui Yun Qing Feng" is not an idiom.