I picked up those subtle cues for the monoliths :D
More interested in the art and concept creation process than the band, sorry. Anyway, I think they were undecided because all of your proposed images were cool enough to be a real cover for the band.
This is something I noticed when people have me commissioning some art for them with no solid image in mind for the end product. I used to give around 10 images and would get a lot delay time before they arrive at a decision. Now I just create 3-4 concept sketches just to avoid decision fatigue from my clients. (I stopped art commissioning due to med school works but will get back at it asap once the study program is done).
Thanks buddy. I certainly agree with you about decision fatigue, I try to avoid giving too many options because of this too. Sometimes I will also set a limited number of changes to the project also.
Cool, be sure to post your new work when you get back into it!