品头论足 (pǐn tóu lùn zú)

找碴zhǎo chávariant of 找茬[zhao3 cha2]

找茬zhǎo cháto pick fault with

苛求kē qiúdemanding

评头论足píng tóu lùn zúlit. to assess the head and discuss the feet (idiom); minute criticism of a woman's appearance

吹毛求疵chuī máo qiú cīlit. to blow apart the hairs upon a fur to discover any defect (idiom); fig. to be fastidious

不自量bù zì liàngnot take a proper measure of oneself

自不量力zì bù liàng lìto overestimate one's capabilities (idiom)

高估gāo gūto overestimate

品头论足