Sif had intentionally kept herself from settling on any conclusions since she arrived on the shores of this unknown realm. There was too much she didn't know, far too much to risk with assumptions. She was a creature of habit, and her habit was calculating.
When it came to affairs of Loki... the factors were exponentially more complicated. She did not trust him, she hadn't for many, many years, and there had been virtually nothing that would have changed her opinion. However, she did trust Thor, who had last told her that the man had died valiantly, and with honor. She had in turn, honored his memory in the same manner she had beloved Frigg, whose death had carved a permanent scar on her heart- as it had everyone the All Mother had known. Now that he was apparently alive, she reserved judgement until she laid eyes on him again.
In regards to his daughter, she resigned herself to keep the same cautious openness. Sif considered herself a just and fair judge of character; all who wished to ply her favor were given equal opportunity to prove themselves, especially if she had no prior knowledge of them.
That is why she regarded the young woman draped in deep gem green, with the same large eyes and black hair as the man that had sired her, with a cool appreciation. Her lips ticked a little into her cheek, however- she was unable to hold the expression back.
"I certainly see the resemblance," she commented to the god beside her, loud enough for Katherine to hear. Then, her eyes ticked back to the woman.