Both of them are good.
Zixuan is a professional calligrapher, the founder of clay glaze calligraphy technology, a senior registered calligraphy teacher of the Chinese Calligraphers Association, a distinguished calligrapher of the Chinese Academy of Famous Calligraphy and Painting, and the president of the Shanghai Fu Calligraphy and Painting Academy. He is good at calligraphy and ceramic calligraphy. His works are unique in style and have high artistic value.
Haidong is an expert in treasure appraisal and has rich experience and professional knowledge in treasure appraisal. His level of treasure appraisal has been widely recognized and he has unique insights into collections.