A dark comedy (shtick). Nice work in my humble opinion.
I like the sarcastic over the top acting. Clearly defines that it's not all that serious & looks like they had a great time shooting it.
The black & white really draws you in to the film. Props to your brother for choosing black & white avoiding color that would distract. The black & white kept it dark & mysterious.
Speaking in general: People now a days take things like music & movies too serious. Before they even click play they already set the negativity in their mind and watch / listen with the, "This is stupid" mentality.