Take that door off and put up a cheap luan hollow core door, cut a hole in the top for exhaust and near bottom for intake air. While at hardware store get a pair of louvered vent covers and if they have them, a custom house filter kit that comes with a carbon sheet and a green batting sheet that you can cut the size of the covers. That will help with residual odor and light leakage but you really should invest in a cool tube/carbon filter and inline fan to best eliminate many issues from heat, odor and lack of fresh air. Your neighbors will most certainly smell your girls without odor control even a mild danky.