iphone pictures have been backed up to the icloud?

One way to do it is to get on a computer and go to ➔ www.icloud.com and log in there with your Apple ID and Password. Choose the photos option and there you will see which photos are backed up (Synched) there.

Note that once you confirm that all photos are backed up then that does not mean that you can delete your photos on your iPhone. If you do that then whatever you delete on your iPhone will be deleted on iCloud as well.

Axel F.

You can go to iCloud.com, sign in with your Apple ID and password. Then check the photo section to see if the photos are there.