Il sistema indica scarsa qualità in alcune immagini caricate senza specificare meglio quale sia il problema specifico. Nonostante i miei controlli accurati solo alcune immagini passano. Allego alcuni esempi di bassa qualità per non appesantire

Who is the photo for, and what is it of?
It is best to give careful thought to the theme before shooting.
Photos that are too close-up have limited uses.
Photos containing too many different elements can also be difficult to use.
Photos featuring a large number of the same object are often rejected.

Focusing issues and no central subject of interest.