SANJIESAN COSPLAY / Costume reference details
Check the reference before swapping the costume’s left and right
A badge, shoulder piece or parting can change sides in a mirrored image. Before making an asymmetric costume detail, identify which reference you are using and whose left you mean. A clear side label saves a maker from solving the same ambiguity after work has begun.
Keep one identified view as the starting point
Choose a documented official reference where available and retain its source, character version and view description. Do not assume an image has been mirrored solely because it disagrees with another picture; different versions, poses or edits may explain the difference. Mark the uncertainty if you cannot resolve it. Keep your working annotations on a copy so the source image stays available. For Sanjiesan, use the established character identity and reference rather than treating a changed costume image as permission to invent another identity.
Write wearer-left and wearer-right
Label an asymmetric feature using the wearer’s side in words. A front-facing drawing can put wearer-left on the viewer’s right, so do not rely on an arrow alone. Add a small front-view outline and place the label on it. Keep any symbol orientation or readable lettering visible in the note. If you make a temporary paper comparison, use it only to communicate the intended position, not as proof of the detail’s final dimensions or construction. Ask the maker to confirm the same side language.
Check the actual view used at the handoff
Compare the labelled reference with the next sketch or fitting photograph before accepting the detail. If a selfie or another potentially mirrored view is supplied, ask how it was captured and compare an identifiable asymmetry instead of guessing. Keep the chosen reference version with the approval note. The useful result is agreement about one specific feature. It need not settle every alternate depiction of the character, and it should not turn a practical costume decision into an unsupported change to the underlying character design.