I need a dress to wear to my brother's wedding (which is next year, but I don't want to leave dress shopping to the last minute, and presumably autumn and winter are not a good time to buy wedding guest dresses for summer!). I've looked through the wedding guest dresses on these websites, and not found anything I love:
John Lewis
House of Fraser
Coast
Monsoon
Next
H&M
If anyone has suggestions of other websites to try, that would be great!