Historical figures and milestones of Russia are portrayed below by Milo Manara:

The characters are, from left to right:
Man with mustache: Emperor Petr I of Russia↗ (b1672)
Empress Catherine II “The Great”↗ (b1729)
bearded man? Ivan the Terrible↗ (b1530)?
Cosmonaut Yuri Gagarin↗ (b1934) (first human animal to travel in space)
The bearded guy to the left of gymnast: novelist Fyodor Dostoevsky↗ (b1821)
Round glassed guy: composer Igor Stravinsky↗ (b1882)
Gymnast: Olga Korbut↗ (b1955)
Top right siloutte figure is probably the novelist Leo Tolstoy↗ (b1828).
Man in military uniform: Joseph Stalin↗ (b1879)
Long-haired bearded guy: mystic Grigori Rasputin↗ (b1869)
Hatted comrade: Vladimir Lenin↗ (b1870).
Other pictures:
Behind the chess set: Russian icon. Russian icons↗
Chess. Russians dominated the world in chess. See World Chess Championship↗
Sputnik↗ (first satellite in orbit)
Photo of Hammer & Sickle Flag over the Reichstag building in Battle of Berlin↗ during the end of World War 2.
The back view of a man in Napolean hat in the center of the image, must be Napoleon, representing Russia's victory of the Napoleon's invasion of Russia↗ in 1812.
Saint Basil's Cathedral↗ Mosco.
The Ballerina may represent Anna Pavlova↗ (b1881)
Men on horses: they migth represent the Mongols of Mongol Empire↗, who in 1200s ruled Eurasia, including Russia, China, and much Eastern Europe and Middle East.
Russian warship Aurora↗, who took part in initializing the October Revolution↗ (1917)