>>4766400that left piece is so busy and stressful, looks like a refined 15 y/o's spiral notebook; no direction or masked as abstraction. regardless, he has great line control, decent sense of value.
composition seems to be a bit of a wreck for the left piece as well. but if they're willing to learn, then this shouldn't be an issue then.
also op, why are you so concerned about your friend's work enough to seek out opinions on them?