Wait... you're using those examples of art as factual examples of lions beating tigers in actual fights?
Yup, for a number of reasons.
#1 The Majority of them I have found abstracts, remnents, scriptures that linked them to an actual account recorded with multiple sources insure-ing its credability of what exactly happened an how the artifact came to be, you know that list of 150 accounts of documentations a lion has killed a tiger I posted? Uh Huh! some are tied in with them.
#2 Anything before the early-mid 19th century will have more credability due to the fact that there would be no way of an artist other than 2 ways in knowing how either tiger or lion looks like, either by reading a book or the only other way is to see the occaision them selves.
#3 Artist must see events to an extent to capture every detail, espeacially anatomy, body structures catering to movements.
#4 The districts in which they hailed from have 80% historical significance of the main three things which are they have been incorperated animal collections of Menageries which would lead to accidental fights that are well documented via documentations in all forms....2ndly the reigon has had high cultural substance of animal baiting an pitting animals to fight the other which are mere replications of what they saw an who won...3rdly cultural idenity of Indigidous recordings threw art is one of the most highly creditable aspects of records to dispute the natrual that which we have video proof of now in our era, would be hilarious, in terms records show a consistancy with modern documents Via=Video.
Finding out the artist name can provide his world of credability also, most I have archived had visited an were a part of an era where the events from menageries, to venatios an baitings were more abundent being not illegal at the time, hense people like George stubbs had recorded multiple events in multiple places such as his Bio states he went to morrooco, an he went to Italy places at the time where there still was alot of animal match ups incorperating tigers vs lions. Which also his Bio has over 100 websites adding to his credability of alibies of his individual talent out-look, he stated he never liked to copy art, or be inspired by art, he painted experinces of his life an stated nature was his art deco to impliment.
I'm not saying every single one of the artifacts I presented is an account, but they hold merits of substance in being an account, not to mention most have there abstract document showing they were real events.