Ukraine's vote: A victory for Europe?

Officially, pro-European parties have won the parliamentary elections in Ukraine and its people have expressed their will for Ukraine to move closer to Europe. The trouble remains, however, that pro-Russian residents living in the east, and those living in the south, in Crimea, did not take part in the vote at all. So will all of Ukraine move closer to Europe? And how will Russia and Vladimir Putin react if it does?