He probably knows very well what will be hidden by the printing process and what people will notice. I mean, you're talking about 28 page booklet, 12cmx12cm in size, where colors bleed a bit into eachother washing out those types of blending errors anyways. I had to look very close to see the watermark near the guitar on the page, and the one on the top (the letters saying depositphotos) i can't see at all. And if you guys remember, this type of reaction to the artwork has been there since octavarium - so many complaints about the ball not being absolutely perfect, and the ropes just being lines on the first released image etc...