The top half illustration shows that ugly thoughts should be expected to manifest over time as ugly face, not body language, not behavior, not having ugly expressions on what could have been a lovely face, but the face gets uglier. Meaning someone who looks nice obviously must not be having ugly thoughts.
Yes, the second part suggests ‘ugly’ features can look lovely with the right attitude, but the first clearly says ugly thoughts make ugly features and by implication pretty people can’t be possessing of evil thoughts.









But the first half also says someone with ugly thoughts cannot ever look ‘pretty’, and not ‘oh people will know your inner ugliness and refuse to see your physical attractiveness’, but ‘your face will develop ugly features’. So it at least declares that pretty people should be considered ‘good’.