I would hope we have left behind a love for our planet - finally some Governments and other "governing bodies" have realised that this planet is not long for the world unless we start to take care of it. A little late, maybe, but better late than never.

If you're only talking art Stevie, then Banksy, Damien Hurst (don't like all of his stuff though).

Tracy Emin is a pile of ................ (IMO) but that's art - she may very well be considered  wonderful in a thousand years' time 😐   Lots of other artists mikght be worthy of mention, but I would hope that our generations might be remembered for greater things, other than artefacts.

We won't know what we've left behind really, unless there is a little shelf where we can all sit once we're dead and watch it unfold