first step, from the left:


Ali Mostafazadeh
Hugh Jones
Alexander Andrianov
Naomichi Hatano


 second step:


Laura Gouba
Andreas Fring
Mustapha Maamache
Camillo Trapani
Anna Okopinska
Giorgia Bellomonte


 third row (step?):


Jean-Pierre Antoine
Sanjib Dey
Mariagiovanna Gianfreda
Eva Maria Graefe
Carl Bender
Dorje Brody
Stefan Rotter
Fabio Bagarello
Miloslav Znojil


 fourth row:

Kazuki  Kanki 
Sasan Haji-Zadeh
Savannah Garmon
Vasily Rodionov
Boris Mityagin
Sergii Kuzhel


 fifth row:


Marco Coco
Andrei Sokolov
Radek Novak
Gabriel Marinello
Alexander Rush
Michael Levitin
Qing Hai Wang
Geza Levai


 sixth and seventh row:


Salvatore Spagnolo
Kazunari  Hashimoto
Jiri Horacek
Mauricio Pato
Dieter Heiss
Andrey  Shafarevich
Stanislav Stepin
Joerg  Main
Steve  Mudute-Ndumbe
Arkadiusz Kuros
Matthias  Heinrich 
Salvatore Triolo
Francesco Gargano
Margherita Lattuca