Browse twrp backup

Hey guys i got a question. I did a backup via twrp and moved it to a USB flash drive then did a factory reset now I'm trying to fnd my photos to restore them via nandroid manager but i cant find them. Can anyone tell me the path where they were backed up?
FYI im pretty sure the photos are weithin the backup because it has a size of about 5gb.
Thank you in advance!