error

An unintentional, or perhaps intentional artistic mistake present in the scene.

Not to be confused with

error_message

Tagging guidelines

This tag includes common artistic errors that slip into a submitted image. The artistic quality of the image itself is unimportant, and the nature of the anatomy to a large extent should be as well. This tag's application to deviations from "realistic", or "expected" anatomy should be kept to a minimum, in regards to both form and function.

Proper usages

Continuity errors - Plot holes, or incorrect sequences of events.
One or more miscolored anatomical features, especially if it relates to a more established character or set piece.
Mislabeled frames, or sections - The label does not describe what it is supposed to describe.
Flip/rotate errors - Text that appears upside down or backwards.
Anatomy that is upside down, or not mirrored when it should be. Having multiple left or right hands is an example.

Improper usages

Style inconsistencies between frames. Anatomy changing slightly, or stuff being drawn differently from frame to frame is probably not an error.
Do not use for bad, or poorly drawn anatomy, numbers of digits, numbers of legs, or the number of any anatomical feature for that matter. This is a matter of artistic liberty, and is not a mistake.

Anatomy that bends in ways that it probably shouldn't.
Digits that are longer, or shorter than expected.
Misplaced anatomy probably shouldn't use this tag either. Check to see if an unusual_[anatomy]_placement tag is applicable instead.
Size inconsistencies probably should not use this tag. It might be an error, or it might be intentional. A character with two differently sized breasts is better tagged as asymmetrical_breasts. The same applies for other anatomy that comes in pairs.