if I erased my iphone on icloud are my photos deleted?

If you remotely erased your phone using Find My iPhone, everything on the phone is deleted. If you backed up your phone on iCloud, your camera roll photos would still be contained in the backup and could be recovered by restoring the backup to another iPhone. Photo stream photos from the last 30 days could also be recovered by signing into your iCloud account and enabling photo stream on a compatible iOS device or computer.