An artistic-licensed use of seeing inside or through a normally opaque barrier. Examples: skin, bone, armor, metal containers, concrete walls...
Typically rendered as a partially transparent overlay, or a cut-out. The internal and external views should always be overlapping. Rule of thumb: If Superman could see it with x-ray vision.
- Wet, sheer, or clear clothing only qualifies as see-through because it has natural transparency.
- A cut-out internal view separated from the main image only qualifies as cross-section because it doesn't show the external barrier.
- Goo girl is a class by itself.