For some reason, I have a strong feeling that the top one from the picture which shows the spines of the new Quadio titles will be Roberta Flack. That will cover the "female" aspect as well as one of the "only Quad release by this artist",
And then the remaining two titles, one male artist and one band, I am not sure, but to consider the sum of the catalog number, one must be in the 7000 range and one from the low number range (around 1,000 or so). Or another possibility would be one title from the approx. 2,800 range (e.g. Bread) and another one from the 5,000 range.
But if it is indeed Roberta Flack, I would be happy with that one.