Prepare the work, not the gallery interface
Use an image you own or have permission to search. Keep the full composition and a second copy without the surrounding web page. If you only have a photograph of a framed print, perspective and reflections may reduce the usefulness of an exact-copy search.
Compare meaningful features
- Search the whole composition.
- Try one crop around a distinctive section.
- Open candidate portfolios and product listings.
- Compare placement, line details and signatures at a useful size.
Two illustrations of a red bicycle may have the same subject without sharing the same drawing. A candidate containing the same small irregularity in a spoke or background detail is a more specific lead.
Keep attribution grounded
A marketplace listing can be a repost, a licence holder or an unauthorised use. Check the artist's own portfolio and available publication history before deciding. Choose a search workflow that preserves page context; a tool that finds similar colours but hides the source is less useful when the real question is attribution.
Continue with tool selection worksheet.