When searching for "monster_hunter" and looking specifically for the titular creatures, it's very difficult to produce search results that don't also include non-monster images, like those with felynes and/or humans and no monsters. It's possible to exclude felynes and humans from the search, but that would also exclude images with both felynes/humans and monsters.
To this end, I suggest the creation of a new species tag, something like "monster_(mh)". This tag would encompass all monster species from the Monster Hunter games, like Zinogre, Rathalos, et cetera, and make searching for them easier.
I wasn't sure how to submit this suggestion given its scope, so I thought a forum topic would be the best avenue.