For some other views of the statue and some info about the author see Vera Mukhina or Vera Mukhina, Sculptress. The statue was the work of Vera Mukhina (1889-1953) for the Soviet Pavilion at the Paris World's Fair (Exposition Internationale) in 1937; it now stands at the north entrance to the All-Russian Exhibition Center. See some pictures about its disassembly for restoration. Those of you who are film buffs will recognize the statue as the old symbol of Mosfilm studio.
Wikipedia on the statue.