I'm not amazed by these covers, but they don't look bad in my opinion. Text placement could be much better, but otherwise fine, and definitely not the worst Ayu has ever done for covers.
While I do see the point that people are making about these covers not fitting with the album title, I see another side to these covers: these pictures, though they may seem quite plain, do in fact have millions (well, in HQ at least) of tiny different particles of colour, that all together form one image. In the end, even a closeup of Ayu's face would contain many, many different colours because few things are truly mono/duo/tri(etc.)chrome, most things are simply observed at too far of a distance for the variation in colour to be noticed.
Or at least that's my attempt at taking a deeper look into how the covers could tie in with the album name, it might not be the least bit close to the official explanation for the choice of covers at all, but it is the explanation I'm using.
Also, one thing that did bother me majorly about the covers, or should I say about one cover, is this;
Lazy editing???