V3P1 88%:
she continued by weaving paper into a small bird
The next sentence says she folded the bird from a single sheet of paper. Perhaps the Japanese text used a word that could mean several crafts including weaving? In English, weaving is a specific physical craft very different from origami. It would be more natural to fashion or form paper into a small bird. (It would also be natural to weave something in an obviously figurative sense, like weaving words, but weaving a non-woven physical object is just confusing.)
V3P2 17%:
eyes widening as his words sunk in
sunk -> sank
sunk is the past participle, sank is the simple past tense.