Is this dress suit for me to attend a wedding?

Diane Altemus

http://www.dresstimes.com/product.php?productid=29566&cat=289&page=1

Is this dress beautiful?

My sister-in-law is choosing a bridesmaid dress for us to attend my brother’s wedding.

And among so many styles, she choose this one, what do you think about this dress, and what color is more suitable for attending a wedding at the beach?

Appreciated if anyguys give me some advice.