Difference between Naturalness and Artlessness

NATURALNESS vs ARTLESSNESS: NOUN

The likeness of a representation to the thing represented
Of a picture or recording, likeness to the original.
The state or quality of being natural; conformity to nature.
Conformity to nature, truth, or reality; absence of artificiality, exaggeration, or affectation: as, the naturalness of a person's conduct.
The state of being natural: as, naturalness of conduct.
The quality of innocent naivete
The quality of being natural or based on natural principles

Expressivity, Vivacity, Musicality, Plainness, Sensuality, Elegance, Simplicity, Effortlessness, Spontaneity, Lightness, Gracefulness, Expressiveness, Innocence, Artlessness, Ingenuousness

Unworldliness, Clownishness, Callowness, Boyishness, Unconventionality, Unpretentiousness, Daintiness, Directness, Nonchalance, Plainness, Artfulness, Simpleness, Innocence, Naturalness, Ingenuousness

Loveliness, Freshness, Prettiness, Directness, Sensuousness, Expressivity, Vivacity, Plainness, Sensuality, Elegance, Simplicity, Lightness, Innocence, Artlessness, Ingenuousness

Slyness, Punctiliousness, Incredulousness, Unworldliness, Clownishness, Boyishness, Unconventionality, Unpretentiousness, Daintiness, Directness, Nonchalance, Plainness, Simpleness, Innocence, Ingenuousness

The success of these manufactured constructs lies in their apparent naturalness.
The Naturalness of Belief, edited by Paul Copan and Charles Taliaferro.
Model Independent Naturalness Bounds on Magnetic Moments of Majorana Neutrinos.
Everybody seems gorgeous here, whether by naturalness or doctorness.
Keep on the plane of naturalness and genuine friendship.
In the continuum of naturalness, what is hybrid?
The naturalness and realism factors are extremely high.
Hale, a certain determined naturalness in her voice.
My criteria for clothes are naturalness and grace.
High naturalness was also reported to generate higher wellbeing in participants than low naturalness.

Dawho take advantage of his artlessness and manage to cheat him of all his money while pretending to be his benefactors.
Did his school peers get under his skin: their sense of entitlement, their contempt for the lower orders, their noise, their vulgarity and artlessness?
Here is the elemental artlessness of nature, and here the beatitude of innocence.
It was accompanied by a meek, humble, diffident and modest spirit, and a plain, undisguised, unaffected artlessness of manner.
Freedom from guile, cunning, or deceit; simplicity or artlessness.
ANT: Openness, fairness, candor, honesty, frankness, sincerity, artlessness, ingenuousness, straightforwardness.

Is speech-naturalness feedback reliable in rhythmic speech treatments of stuttering?
Why are people complaining about media naturalness?