Hi Janet --
Following the crowd, here --
1st dress yes (coloring, flattering, boho summer side, unusual). However I would suggest you try with a bra for fit, too...structure that supports when walking around the house vs structure that supports when walking quickly on pavement = two different things in my world, but maybe you wouldn't wear this for that.
2nd dress pass, and if you keep absolutely make the sleeve alteration. [Is there a shoulder seam? Because I might take the sleeves off entirely if so.]
This reads very much like a retro classic dress -- especially adding in the riff on Breton navy/white stripes.
Of course there's nothing wrong with that and it's a style I personally love and it shows off your hourglass shape so well -- but I don't see you referencing Audrey Hepburn in Roman Holiday as one of your style icons.
Also the cool corset waist doesn't read like anything but a wide inset from afar, so if you want others to register that...well they'd have to be right close to ya. If you like it being more of a "wearer's fun detail" then never mind.
[Also also -- coming from your neck of the woods are you at all worried about a waistline like that being a sweat-catcher? I think most of your current dresses are cut the way they are for a very good reason!]