These are AMAZING. Your setup(and skills too obviously...) is awesome. Now that the MKIII is out maybe I can get a II for cheap....er.
"Let us declare nature to be legitimate. All plants should be declared legal, and all animals for that matter. The notion of illegal plants and animals is obnoxious and ridiculous."- T. McKenna
All natural lighting - thing is, at this time of year (and after all the rain we've had recently) the leaves are all a beautiful, vivid colour - so, any light you get on them bounces up and lights the scene wonderfully.
Part of me still wants the 85mm 1.2 over this Zeiss but the Zeiss is so much sharper and you can't use the 85mm for macro like this..
The Mark III looks good but it's not a massive step up from the Mark II - you should start to see Mark II prices dropping a bit though.
I'll be buying more lenses before I consider upgrading my camera.
Seriously - a decent lens on the original 5d classic is still an AWESOME setup.