Left is Nicholas II? Anyhow, I think the cousin on the left looks better- more refined. Cousin on the right looks softer and older.
LOL, I was not sure which one was King George, which one was Tsar Nicholas (both are technically German, wearing German uniforms in the picture. WW1 - what a stupid, pointless, royal clusterf**k). This probably explains why the British Royal family refused to take in the Russian one after the Russian revolution, despite being cousins and all. No king wants his doppelganger hanging around confusing the s**t out of his subjects.