I personally think the pale pink one - the first option - is actually way more stunning than the white one anyway. I think if you love the dress for the style/shape and are not certain on the white for a wedding then one of the other colours would be much better.
Im not at all sure about the bright pink (with a crochet top?), the skirt is lovely but the top not so much, especially worn the other way round. I don’t think the white one is anywhere near as stunning at all anyway. The white and blue, again not really special enough, but that’s my own opinion. I think the pale pink one is definitely the nicer of all the options.