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Which artistic details do experts compare during stylistic analysis of a painting?

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During the stylistic analysis of a painting, art historians evaluate several key elements to determine if a work is consistent with an artist's known body of production. Because stylistic analysis is a subjective process that relies on the expertise of the historian, they compare the following details:

Brushwork: Experts study the unique idiosyncrasies and flair of an artist’s brushstrokes, which can often be analyzed similarly to handwriting to detect a fraud.
Subject Matter: The themes and topics typically chosen by the artist are compared against the suspected work.
Choice of Colours: Historians examine the palette and color application to ensure they align with the artist's established habits.
Composition: The structural arrangement and organization of elements within the painting are assessed for consistency.
Iconography: In the case of antiquities, scholars analyze the iconographic elements to ensure they are combined correctly, as forgers often lack the scholarly background to execute these details accurately.1

Any significant variation in these elements typically arouses suspicion regarding the authenticity of the piece.1