Glasses sheen is a common anime trope (https://tvtropes.org/pmwiki/pmwiki.php/Main/ScaryShinyGlasses), and telling someone to try harder isn't exactly an uncommon thing to say.
Glasses sheen is a common anime trope (https://tvtropes.org/pmwiki/pmwiki.php/Main/ScaryShinyGlasses), and telling someone to try harder isn't exactly an uncommon thing to say.