Is this acceptable to wear to a wedding?

[Grimmfebruary]

Just not sure if it has the potential to look a bit bridesmaidy which is not intended, I just love the fabric and prefer the navy or pale to the pink.

Unless the wedding you're going to has navy bridesmaid dresses, or that style, then I don't think it will look remotely bridesmaidy.
It's a very nice dress for a wedding.

It's lovely, I don't understand how the neckline on the navy is so much lower than the pink version though.

Fine, but small risk that the bridesmaids are wearing one of those colours!

Navy is fine but looks very low at the front.

Perfect. Will look fabulous.

The navy one is fab. Go for it!