An example: for your photo, some perfect key-subjects would be monastery, or religion, or church, or cat.
Sorry I didn’t understood that is an obligatory part, @davidesimoncini. I thought it was only necessary to fit into two given themes. On the other hand, you have listed all four possible key subjects. So, I would go with two general: Religion and Cats :)
Have I qualified now? Should I edit the comment with my photo?
Oh yes, no problem. But it is ok, no need to edit the post. I need one key-subject to continue the chain, this is why I wrote to you as above. You have been entered correctly, dear. I use the first word - "religion" - if it is ok for you :)
Yes.