Does this ditsy dress fit me well or should I size down?

I love the print and the style, but the dress is a size S and I'm in between XS and S, should I order the smaller one or is this S one looking fine on me?

- What about the straps, should I go for thicker ones instead?
- Do you think I could wear this dress to a date?
- And what would you do with the hair — an updo or keep it down and loose?

I never wore flowery, ditsy or whatever dresses before so I'm not used to this fit.
Does this ditsy dress fit me well or should I size down?
its length is slightly above knees for me
its length is slightly above knees for me
my bum looks bigger than it actually is for some reason
my bum looks bigger than it actually is for some reason
Lots of questions I know :D
Updates
1 y
Just a quick update, would these sandals go with the dress?
d25-a.sdn.cz/.../hhD2RG.jpeg
Does this ditsy dress fit me well or should I size down?
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