Anyway, it's wrong to picture Alex II as liberal, he was not as reactionary as Alex III or the Nickys, but he wouldn't introduce a strong elected duma.
Alexander II was a pragmatic conservative who realised that Russia needed to change simply because reactionism in various state arms had produced the Crimean fiasco, not because change was necessarily a good thing.
I'd go back to his namesake for a liberal Russia. I've often wandered where Russia would go politically in a Napoleonic victory world.