How much is the design fee for the rockery pool in the villa courtyard?

The design of the villa courtyard rockery pool is generally about 200 square meters. My family chose a beautiful place to decorate, and the ground work is really good! Put forward many practical ideas, many details will help us consider; Very patient, whether in the design stage or during the construction process, can respond to our questions in time; I feel that young people's communication is completely barrier-free and the cooperation process is very pleasant ~