Those images don't breach copyright. It's basically fan art.
That's nonsense -- fan art is, by definition, a derivative work, and derivative works are the prerogative of the IP holder solely. If they don't criticise, parody or satirise (or you aren't an educator using them in an educational context, perhaps to teach about copyright -- ho ho) then you're relying on the IP holder's good grace.I agree that BRL has next to nothing to worry about (being asked to take the images down -- the very worst that could happen -- would be unlikely even) but let's at least paint things as they are.
People are flippant about copyright violations because copyright is a fairly new concept and one which is poorly thought out at that.
Well it's perhaps fairer to say that it was better thought out at its inception than its recent implementations might lead one to believe. Hence.