A.The clothing tells us that she's rich and wealthy. She's wearing very nice clothes with red and stripes.
B.The background is plain blue, but that's probably to focus more on her and her features. There is stipes on her red dress though.
C.The artist wants the viewer to know that they are rich and that they are very wealthy. I can tell by the fancy, clothes, makeup, jewelry they're wearing.
D.The lady in the portrait's name would be Angelina because I feel like she would just be a Angelina. Angelina would be rich and they are nice and loves her family and friends a lot.