The fingers are held at slightly different angles, so the hands might be considered Conformational diasteromers.

On the other hand, there is no obvious barrier to slight, smooth motion of the fingers in Adam's left hand (on the left) to create the Conformation seen in God's right hand (on the right), where the index finger is more vigorously exended. From the viewpoint of conformation the two arrangements might just be considered different phases of vibration within the "same" conformational energy minimum (like anti-butane with a torsional angle of 178° versus anti-butane with a torsional angle of 175°). They would be obviously diastereomeric conformations if the index finger of one were tied into an overhand knot (ouch).

In the previous paragraph the word "same" was put in quotes, because even in corresponding conformations, the hands would be non-superimposable mirror images (God's right, Adam's left), so we could consider them Configurational enantiomers.

Interconverting right and left hands would require a LOT of plastic surgery (breaking and remaking of bonds).

Here is a case where our home-made nomenclature is not perfectly satisfactory. When the two hands are in the "same" or "corresponding" conformations, it would not make sense to call them "conformational enantiomers". It would make more sense to call them "Conformational homomers", but they certainly would not be superimposable. Clearly the enantiomerism is a property of the configuration (how the thumb is connected, not how it is bent).