Panel 2: What is an "ugly" website? Or, what is "ugly" a euphemism for? Chatting with dangerous people? Well, the thing about net predators is, they don't come off as dangerous; that's rather the idea. And as for the ellipsis after "looking at", what girl looks at porn?
Panel 3: Good lord, John's nose is bigger than Elly's! It's as wide as the coffee cup! Meanwhile, he might not find Elly's remark reassuring. Also, how is he now sipping the coffee, when in the previous panel, it was giving off a factory plume of steam?
Panel 4: I see a disconnect between the strip, where John is only contemplating the idea of monitoring April, and the letters, where Mike already tracked her every keystroke.
Panel 5: John looks slightly sick at the idea.