First I' was sure that this is an other girl. But I' think you are right, that is Olga from Hegre !
it isn't, actually. lots of similarities between them, but there are subtle distinctions. both have angular faces but they're shaped differently, they have different mole patterns on their chest, and their noses are very different.
p.s. if anyone wants more of TSM's olga her galleries go from 1 thru 5.