Ohhh- those are gorgeous, Inge! I so hope one of them will work out for you!
My experience, for what it is worth: Not every jacket in the shop fits the same. They employ or use different designers. This makes it more difficult to order online.
I would definitely consult with Sylvie. She had a lot of back and forth with customer service before visiting Toronto where she eventually got her jacket. She posted a thread about her experience a while ago.
The jacket I bought is XXS. For reference, my shoulder circumference is about 38.5 (or 98 cm). I am small busted, as you know. (A 30C) I'm 5'4". I take anywhere from a size 0 to 4 regular or 0 to 4 petite (depending on the article of clothing and the maker). I fit the small in the Zara jacket that Angie chose for me...probably would have gone to a medium if I wanted to use it as an outdoor coat to layer heavier sweaters underneath.
I can comfortably layer a button down and a thin wool sweater under my new Danier jacket . It feels a bit snug when done up, but is already easing (as the sales assistants said it would). It wouldn't fit with the YLF Gap sweater underneath, though. That one is too bulky and the snug arms of my jacket wouldn't play well with it. But that's okay by me. I intend it mostly for indoor wear with some outdoor wear in our short spring/ fall seasons. (I get more use from an indoor jacket due to our climate.)
Like Shannon and Sylvie, I found that some styles didn't hit me in the right spot - the ones with the nipped in waists seem to work better for me.
I am very pleased with the quality of my jacket and my bag. I'd definitely shop there again.
Can't wait to see you in whichever you choose!