Heh, that actually does look a bit like a Polish face from what I've seen at poultry shows.
I don't know the genetics of combs very well but that definitely looks like a combination of a single comb and the V-shaped comb Polishes have. And if the person you got them from said you got a Polish cross, then it's definitely that guy.
As for the color of the parent, the possibilities comprise most varieties of Polish--black, blue, cuckoo, golden laced, maybe silver laced or white.
And if you really want to know what they're made of, or if you might breed them, assuming the parents we've established, the following have a 50% chance of being passed on (they should have one allele for it from one parent and one allele for something else from the other):
-mottled plumage
-a beard (one gene can express itself to any degree from clean-faced with small wattles to a full beard, two should give you a glorious amount of feathers)
-feathered legs (as you know, just one gene will give you light feathering)
-vulture hocks
-a crest (same note as beards)
-buff coloring
-for Taemin, the way he holds his tail that's a bit more fanned out than your other chickens (that sounds weird and probably doesn't work the way I think it does but I'm going by my own experience)
And I think those are all the most notable traits. Sorry if I'm rambling. XD