I’m not sure, but the general format is correct. Because there are very few circulating works of Castiglione, most of the original works are in major museums, and the fakes on the market are inferior, so I can’t judge just from your pictures. What’s more important is It’s a painting. It depends on whether it is Castiglione’s artistic style and whether it reaches Castiglione’s artistic level. You also need to look at the age of the paper or silk, the seal, and many other aspects to identify the authenticity. Thank you