Is She Lanlan a calligraphy artist?

No. Shelanlan was from ancient Gaochang, Gaochang (near present-day Turpan, Xinjiang), and was a Uighur. Buddhism was prevalent in Gaochang State in ancient times, and it has always been a place where Buddhist talents emerged. Shelanlan is a Buddhist monk translator, not a calligraphy artist. The Aluhunsali, Bilannashili, Shelanlan and Garunathas and several other outstanding Uighur lama monks.