And I can continue this phrase with “and when you must not upload them” as in either of these cases the pictures will not be approved.
I will highlight only some reasons that came from my experience, so if you have your experience when you “prevented” yourself from taking a picture, do not hesitate to tell us about it.
So, in my humble opinion, the very first case when you must not take a picture is when the subject you are shooting is not highlighted in a right way. What do I mean by saying it?
• When there is lack of light in shades or vague light in lights – a mixture of different colors that result in weird light.
• When it is the purely white sky while taking landscape pictures. In most cases, you can’t do anything with such a sky. However, you can try to use a polarization filter but it doesn’t always help. If you really like the view and the sly is the only reason for not taking a picture, come back to that place some other day – and you will win! Of course, there can be pictures where you need a white sky, but that is not our case.
The second case is when the subject is interesting only to you. Please, do not be offended, but there is a number of subjects that are interesting only to a person who is taking a picture. A brilliant example of such pictures is pictures of babies.
Every parent considers his child The Most in everything. But this is not the case for the rest of people – for them it’s just a baby who sometimes can scream and look ugly. So think twice before uploading such pictures – they might be out of interest for other people.
Hope my brief description of the most common mistakes will help you producing better pictures.