This is somewhere between description and Analysis. It does not reach into either one of the other two which require either interpretation or judgement.
I don't think it is simple description. The writer is saying that the color forms a contrast, between first of all the pale blue of the background and the striking color of the mother's clothing. The washed out colors of the background leads us to the clothing. It's a contrast, well pointed out, but so far there is no meaning attached to it.
The second contrast does the same thing. The children are very young and their color is pink (sort of) which suggests youth and health. Again, no particular meaning is put on that. It is merely an observation.
I believe there is, however I could be incorrect. Are you talking about this person's music, artstyle, or personal appearance? I can answer more accurately the comments if you can provide this information. :)
Porcelain is the creative fruit of the working people of ancient China. Since the Han and Tang Dynasties, porcelain has been exported worldwide. It promotes economic and cultural exchange between China and the outside world, and profoundly influences the traditional culture and lifestyle of people from other countries.