[Jacob Kell]

By fair features, what do you mean? WHich is more common, blonde or brown hair? Blue or brown eyes?

[AntiGuv]

In my observation, some variation of brown is most common (anywhere from to very dark) with darker shades of eye more of the norm. However, I've seen them anywhere from true blond/blue eyed all the way through black hair/dark brown eyes. The latter is relatively uncommon. In Moscow, you cannot much distinguish them from any other given Russian. Of course, Moscow has quite a variety of ethnicities wandering around but it would be rather odd to confuse a Chechen for, say, one of the Central Asian ethnic Turkomans.