They're very similar but the design is different.
First pair is sling back, bowed pumps. 
Second pair is more classic, stiletto sandals.


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Bowed sling back pumps
I don't like either, but if these are the only options, I prefer the bowed pair
Opinion
3Opinion
All are super cute, very retro looking-I love it! Maybe it's the girly-girl in me, but I'd maybe opt for the sling backs with the bows. Something special for that little black dress?
i think the first pair is slightly cuter
I love bows.
Personally I would go with second pair
Last ones
I say go with A.
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