I have a new 4x6 panel greenhouse to keep my trees in to protect them from critters, wind, and my toddler. However I’m having trouble trying to keep it cool. I have a shade cloth covering the southern exposure side, and a vornando fan, however even with the vent and the door open (which doesn’t help keep the toddler out) it still feels really warm in there. Does anyone have any inexpensive tips for how to keep it cool? I’ve attached some pics (I took them this morning and its still cool outside so I don’t have the door or vent open yet).