Rejection reason for my assets

Save for a couple that I felt were gravely underexposed, I'm at a loss about most of the others. I do know that some contributors who have been submitting assets for much longer than I have are experiencing issues with similar rejections for quality issues that they simply can't find. And I've been having assets rejected for unwarranted "too many similars." Hard to say what's going on. I suspect that a month or two ago, many of these would have been accepted.

DId they say specifically that there were "quality issues?"