iCloud Locked iPhones can have different statuses.
Please see below images of iCloud Locked iPhones so you can easily identify your iPhone’s iCloud status.
Since it simply asks you for an Apple ID and Password, it means that its iCloud status is CLEAN.
However, if you see any of the following screens on your iPhone, then it also means that it is activated with an iCloud account, but it is also reported as LOST.