Should be window box , not close box. Wtf?

My second floor condo has a little covered porch with south and west exposures. I'd like to put in some hanging baskets of flowers, but not sure which type would work best. West side is near a large tree but gets a decent amount of light. I also have a close box on the south side--ideas needed for it, too! I have a grey thumb when it comes to plants, so need advice!