Photos went missing

Hey guys,

couple of days ago I received a notification saying that my iCloud storage is running out so I have to upgrade it , So I suggested to remove some of the unimportant photos from my iCloud because I’m already on the 50 GB plan ,when I was removing some of the photos and videos a notification popped up stating that if I did remove those files from my iCloud it won’t affect the files that are already in my photos ! Like if I have a photo in my phone and I have a copy of it on the iCloud and I’ve removed it from the iCloud storage it will remain on my phone , However when I removed (all the photos) from the iCloud it disappeared from my phone !

the question is : Would I be able to restore them!?