I have a wedding coming up and my friend insists she has a dress she can lend me that will be perfect but i'd just like some advice from others...its a afternoon wedding followed by a reception and i'm only a guest (no one that important!)

Also,any ideas what shoes etc would look good with it if it is an o.k dress? i was thinking im going to need some sort of shrug/cardi thing too but again i'm not sure ...arrrgh i'm useless at fashion sometimes

any help/tips/advice will be great and save me from over thinking and panicking!!!! thank you!!! x

this is the dress.