I'm writing as I'm reading, so it'll be updated as I go further along:
pg14, the whispering in panel 1: it feels transliterated. It gets the meaning and intent across, but doesn't read fluently in English. Particularly bubble 3; 1 and 2 are fine. I'd say the repeated use of "that" makes the sentence feel both redundant and vague.
pg18, in reference to the TL note: "Let's do this!" is an equivalent English phrase.
And finished chapter.