I have no qualms with modern minis, I certainly have no problems with any of the modern minis in this preview.
Rasputin: I'm a little underwhelmed with this one. Given the power of the name I was hoping for a cool effect around his, a lightning cloud or similar, like the one Go to Horrorclix produced. That said, I can easily find uses for this mini in my games.
Russian Soldier: Like this one a great deal. WWI gas mask - tre cool. The detail looks excellent, and at the common rarity it would be easy to get a few and mod the gun into a spear or other weapon.
Russian Machine gunner: Nice mini, great match for the art, nicely detailed. May not be for everyone.
Polkovnik Lavrenti: A win in every way. This is an amazing mini, awesome detail, great use of transparent plastic. I saw the art in the AP and when the set was announced hoped it might make the cut, thought it was unlikely. Once again you have made me a very happy camper. Now all we need is that nightmare without the rider.