Hi,

it need long time until I uploaded these photos - now only on Pond5 available.

The reasons are/were:

1. Mostly not sharp photos. Who would buy it?
2. But after I saw these photos in big on my laptop AND watched each minimum 5 seconds, suddenly I saw a market for them! But am I right with it? Or does still 1. refuse all my ideas about it? Then I rotated that photos: and more and more I saw these photos could be attractive for this:

game backgrounds, which has different rooms in a fantasy world or a science fiction genre.

But I might be totally wrong with my idea.

What do you think?

And IF you think it could be saleable: WHERE on which agency I should offer them? Well, of course except shutterstock which AI review will never accept them, even if I upload them 1000 times. LOL
And Most other agencies will reject them for same reasons, just because not sharp, noise and so on.

I am curious to know your mind. Thx in advance!

* In real there are not many photos, but I cropped them, rotate them in any kind to show, what could be done with them.
** Photos were taken in a cave.

And here they are:

https://www.pond5.com/de/collections/3885344-photos-fantasy-game-backgrounds

You seem to be talking about abstract backgrounds.
Not my turf, but there's a market for that, as there is for nearly everything.
It does need different keywording and probably also different editing.
"Grotto Passages Surrounded From Flowing Stone Walls And Dripstones" will not do the trick if you want to sell it as a background.
See how others keyword their abstract content, and take yours from there.

I wish agencies still had editors...

Why is there so much duplication? Many are virtually identical. My eyes glazed over looking at them.

Well, after I suddenly saw potential for sales in case for games and so on, I got grazy and tried with only 8 images or so following:
- Crop, so that it is easier to see for what it might be needed.
- rotate often in 4 ways: To see, how putting them together could have more perspectives of a way through the cave and easy to handle for composing a virtual room.
- changing the color from cream white or brown to golden.

Yes! I could just upload the main and original 8 photos instead and let them do the work on they own. They even know it better how to do. But I wanted to find out myself, how it works and now the customer has two options:
Buy only the original ones and safe money and do the work on his own. Or for lazy customer, who like the crops and rotated views can buy all they like. LOL

Hey, I know, it is a little bit grazy. And overwhelming indeed! - or glazed over
But I had fun with it and the only motivation was:
After viewing them in big size, I suddenly saw directly a buyer for them - Even the quality is for sure not good, I know! But not sharp backgrounds are also searched for elsewhere for many reasons. So why not these? 

If you want to sell these as game backgrounds, you need to make them seamless.

This and a few more ideas coming up in my mind.
BUT: Before that I would like to travel to that place again or similar places and take better shots. and maybe also videos.

Most game 'images' are not photos, ESPECIALLY for backgrounds. - they're CGI which makes them easily changed with viewpoints, motion, etc.  DOOM/QUAKE erupted w this  model 30 years ago a nd rendering has become faster and more detailed.

one area where game developers might look is location shots on which to base their CGI

You should also learn to select. Having 3 good photos on a subject is better than hiding 3 good photos in a group of 50 less god images.

That's excellent advice under any circumstances!

To sharp photo use Denoizer ai from topaz. Do very great job

It looks as if there is electrical light in that cave. If you paid an entrance to get there, there may be legal problems with selling the photos there.

You should also learn to select. Having 3 good photos on a subject is better than hiding 3 good photos in a group of 50 less god images.

Unbelievable that after that long time another advice coming up here. - Thank you!
Legal problem because of entrance fee? I never thought about that! Well, not for a cave wall. Yes, I paid entrance and yes there is electrical light there.
Until now I did not try to upload them anywhere else. I just forgot them. And yes, not sharp enough at all.
On other stocksites I would send indeed only 3 or 5 of them. On P5 I did not care. Most are crops from only 2 images, turned around and so on, to get an idea how customer might use them as room view (better: way through a cave) - that was more for me I guess LOL