#Moth's cultist tattoos and fresh scars around the mouth make the similarity a bit less obvious

[thunderboltfire]

I've got this idea that Moth, being basically a bhaalspawn v.2, is to some degree similar in appearance to Iwona at the height of her power. She was, after all, the most succesful of the Lord of Murder's mortal progeny, even if she rebelled succesfully against her foretold fate. It makes sense her traits were used as a sort of a blueprint, whether with intention of perfecting the original or as a way of cruel mockery.

It's evident that Moth, while in some aspects very similar, isn't her predecessor. Some of the difference between them could be attributed to the fact that Moth's a human (or at least, she looks like a human), not a half-elf, but many others are as if someone tried to draw a person from memory and while the effect looks eerily familiar, it's definitely a picture of someone else.

Or, You could also name it a familial similarity. I'm sure Jaheira will love this.