No, Lang Shining's paintings are usually signed with his full name, but the seal of the painting has "Shining".
The National Palace Museum in Taipei collects a set of ten scrolls of "Ten Dogs" hand-painted by Lang Shining on silk in the Qing Dynasty, namely "Frost Harrier, Star Wolf, Golden-winged Harrier, Black Jade Glass, The ten famous dogs of the Qing Dynasty are Cang Shui Qiu, Xue Zha Lu, Ru Huang Bao, Sukong Que, Cang Ni and Spot Jin Biao.
Each painting in the "Ten Horse Paintings of Dogs" series is signed by Castiglione himself. Due to the clear collection and transmission relationship, it has become a standard sample of "Lang Shining's Dog Paintings". The base of the enamel porcelain with famous dog pictures is "Made by Yongzheng Emperor". One side of the porcelain is painted with a picture of a dog lying in the mountains, and the other side is inscribed "The morning wind blows the grass on the shore, and the barking reaches the forest tops."
The inscription next to the poem is "courteously painted by Lang Shining", and There is a red seal "Shining". This porcelain painting art style that integrates "poetry, calligraphy, painting and seal" is a typical feature of enamel-colored porcelain in the Yongzheng period.
Extended information
The earliest paintings by Castiglione that can be seen today date from the first year of Yongzheng's reign. Emperor Yongzheng was followed by Emperor Qianlong. Emperor Qianlong, known as the "Old Man of Perfection", paid unprecedented attention to court painting. It can be said that Castiglione was a painter whom Emperor Qianlong relied on very much. He painted many large-scale paintings that reflected important events at that time, some of which are still collected in the National Palace Museum in Beijing and Taipei.
According to archival records at the time, Emperor Qianlong often issued orders to ask Lang Shining to paint him "Royal Face" and asked Lang Shining to paint the decorative paintings in the Old Summer Palace. Castiglione contributed to Chinese court painting. His paintings are based on Chinese events and figures. Although there is no record of whether he speaks Chinese fluently, there should be no problem with basic communication.
But the three words "Lang Shining" signed on his painting may not have been written by himself. On some of his paintings, you can see the words "I respectfully painted by Lang Shining". They are very neat and must have been written by others.
People's Daily Online - Lang Shining's hand-painted porcelain dog
China Network - Italian painter Lang Shining from the Qing Dynasty and his paintings