After consulting with various specialists, it is almost impossible to know if uA deleted image from iPhone has been completely removed or still in a folder. The key "Delete»Does not always erase an image completely or immediately. It just tells your iPhone and Apple's iCloud servers that hide this file until it is overwritten for other data.
The problem is that even though you can't see these images on your iPhone, an in-depth scan of your device can find them. In the same way it is hard to tell when a photo is deleted in iCloud, since we do not know how Apple's servers work.
To avoid these uncertainties you can learn more precise erasure systems, here are some tips.
Delete from «Photos" not in "Álbumes«
The structure of the images in the Photos app is based on Photos for storage and subsequent ordering in Álbumes, Streaming, etc. This is why it is essential that we understand that where we have to delete it is in Photos.

You will not see it disappear immediately since the deleted image stays in the folder «Recently removed", located in ÁlbumesDuring 30 days until disappearing completely, this is why we will have to delete it there too.

Delete image from shared photos
Deleting the image in Photos still leaves the photos in the shared albums that contained them. If you shared your photo with someone the image is stored in the cloud for friends or family to see. Does not take up space on your iCloud storage although if you have a 5.000 image limit shared, from which you are asked to delete any to incorporate new ones.

You can see them limits of Photo Stream and iCloud Photo Sharing in the apple page.
Delete backup images
If your iPhone does backup when feeding in an environment with WiFi, this copy includes all the images of the device, in short, a photo taken a month ago may still be in the backup of the terminal. If there is any photo that you want to delete completely because it would violate your privacy, proceed to delete old backups.
To delete a backup, follow the path: Settings > iCloud > Storage > Manage storagethen select the device and backups that you would like to delete.
You can also prevent photos from being included in future copies security, remove this option.
You can not do any backup
iCloud can be a great resource, but as a photo sharing resource it is not absolutely necessary. For disable iCloud syncing for photos, just go to Settings > iCloud > Photos and remove all services that depend on the cloud.

When you delete it, you will see a notice that it deletes the streaming photos from your iPhone, don't worry, it's what we are looking for.

Activate XNUMX-Step Verification.
It is not complicated at all, quite easy to use and totally recommendable if you want your information not to fall into the hands of some hacker who sells you for a few dollars to an advertising company, or worse, that you enter the circuit of fraud, blackmail or any imaginable crime.