32 square feet is enough for 8 chickens, not 12.

4 square feet per adult, standard-size hen.
Even 8 chickens require 8 square feet of ventilation, which this does not provide.
Up there in Colorado you might get away with minimal airflow -- if your summers are cool and your winters are dry --
but the OP is in Florida. In a hot climate you may need double or triple the suggested minimums -- which is why hot climate residents are suggesting an Open Air style coop instead.
At the very least, the monitor should be enlarged, fitted with good roof overhangs, and made functional rather than merely decorative and annoying to build. (
My Little Monitor Coop is for only 4 chickens, but it does contain photos showing how to construct a functional monitor).
The person you are responding to isn't the OP.