1. Not too wild about this one but if it works well with a cardi, seems like it could be useful. I remember Angie suggested using a summery crochet cardi to keep things cool when a dress needs one. Love that idea. And let's face it- for really hot days a dress like this can be a lifesaver.
2. This seems endlessly versatile- but it is a little hard to see the details. Does it feel good to put it on?
3. Not sure about this- I'll defer on this one.
4. Yes! I love this on you. What a great summer dress! If it's a little too big now, could you take it in a bit? I've also used Joy's suggestion of a cami under (being a fellow small bust) and I think it works great. But if you want to keep it cool and unlayered, maybe you could post a current photo in the dress and we could tell you if the fit looks too off. It seems like with patterns, you can get away with a little more than you can with solids.
It's fun to be thinking about summer dresses when I'm freezing in my old house here in Seattle!