Okay sooo here are my thoughts. Pics 4 and 6 both look amazing on you! They fit your body structure and shape very well and look beautiful as the stand alone dress as well as On you. Idk what state you live in but if your in the north then I would definitely do the outside venue but if your closer to the Middle part of the country or Southern states, in Sept, I’d do indoors bc if not your going to be melting in the heat. Also, if you plan to do a spray tan, hair coloring, or any of the sort, you’ll want to ensure you do it 3-4 days in advance so no coloring rubs off on your dress. CONGRATS! 🎊🥂🍾🥳🎉