Don't think
Reviews is a good place for that. I would tend to say announcing a CPAN module (even if asking for reviews) would go under
News. If you have specific questions about things you've done in the code, that would be
Seekers of Perl Wisdom. If you want to brag about an approach you took in solving some problem, that would be
Meditations. If you want to show off your code, that would be
Code Catacombs. Just my opinions.