Well, I was a big huge yes for the EF dress from the start. My summers are short, but even I know how crucial a dress like this can be in hot weather, and I wish I could get this exact item myself! It looks fantastic on you and super versatile.
I also like the BR top, especially to wear as you say (that's a silhouette I like wearing in summer, too). It can work with a tube skirt, too, if you have such a thing.
And love your semi-tucks!! So much fun.
The pants are tricky. They do look good and are a fun style and it would be great to experiment. But they are a commitment to a new silhouette so that means different tops, shoes, etc. Having said that, this is a low cost version and could be fun to play with.
I don't think the RL is a good fit on you. It's not the size -- it's the cut and fit model.