Thumbnail repeatedly rejected

Can anyone tell me what is wrong with this thumbnail. It has been accepted twice, but then rejected a day later both times. Is there some rule I dont know about? Their responses are always so vague. Thanks.

I would say it is most likely using realistic photo’s, see if you can run the cat pics through a cartoon filter.
otherwise I’m not to sure but the outlines could also be triggering the thumbnail checker because it doesn’t like borders or glowing effects around weapons and consumbles

thanks for the help <3

Creator Rules do say no photographs

There is also money shown in the thumbnail (also against Creator Rules), third cat on the top row.

I must say good job on getting your game through moderation twice, I’m surprised this thumbnail got through moderation two times and mine didn’t even go through once