The image was (and I found it out just after twisting the card on its back) by Wolfgang Tillmans. That genius of Wolfgang Tillmans.
And yes, indeed, I'd known him for a long time, even without knowing he was "him". As teenager I used to leaf through the pages of my parents' copies of Abitare, where Tillmans had been published with his guys on trees images: pure shabby beauty for the eyes. And I had already fallen in love.
The image is of course Lutz & Alex, climbing tree (1992)
Those two weirdos of Lux and Alex.
Fifteen years forward, I have to admit I totally prefere the subtle sickness of his still lifes: little details suggest some decadence in action: something broke and is actually ruining everything. A peach with a bit of mould, a little bit of dust covering the window panes, some leftovers of peeled off orange skin resting on the table. Something's over and something else is evolving.