I think DL is looking for Blouse for blusa. "The blouse of the girl is pink" and I think this next version is accepted, "The girl's blouse is pink" I was graded correct with the first version.
"The girl's blouse is rose" was not accepted. I'll complain. I don't see any difference between pink and rose. Is one darker?
It is correct, well understood, and should be accepted. But it sounds a bit odd because "of" is used with people for different purposes. "The book of Peggy" doesn't sound like "Peggy's book", it sounds like a book written about Peggy. On the other hand, "The windows of that house look small" sounds natural and, to me, would not just be correct but preferred.