Problem: As a non-English reader, search may often return irrelevant and inappropriate results due to using the image caption / description or inappropriate page-image.
Background: Consider if someone searches for monkey , and a man shows up due to the label or description of the image. In certain contexts this may be insulting. Aside from that, in non-English wikis, a lot of the times the multimedia results will yield wrong images due to the fact that the image descriptions are not translated.
Proposed solution:
When the search matches a wikidata item / alias use the image property as the primary image.
Compare:
(Shows these: https://fr.wikipedia.org/wiki/Fichier:Poisson%20distribution%20lambda%20001.svg, https://fr.wikipedia.org/wiki/Fichier:Poisson%20distribution%20CMF.png, https://fr.wikipedia.org/wiki/Fichier:Poisson%20distribution%20PMF.png)
VS
https://www.wikidata.org/wiki/Q152#P18
(https://commons.wikimedia.org/wiki/File:Abramis_brama_drawing.jpg)