Please help me - what to wear with this....

[MmmPercyPigs]

I am a bridesmaid next week (gulp) and [http://www.debenhams.com/webapp/wcs/stores/servlet/prod_10001_10001_008010620145_-1?breadcrumb=Home~Women~Dresses#BVRRWidgetID this]] is my dress. Trouble is I have to find something to wear over it - it will be coldish (Scotland) and I need to cover my massive arms.

I would prefer something longer than a bolero/shrug....but it has got to be fancy (and match the colour). I am at a loss! Please please help me!

Pants. Link: www.debenhams.com/webapp/wcs/stores/servlet/prod_10001_10001_008010620145_-1?breadcrumb=Home~Women~Dresses#BVRRWidgetID

The detail on it is going to make wearing a longer cardi or jacket look odd, I'd go with a shrug

shrug
long sleeve

or maybe even something like this?
longline jacket

Gorgeous dress!

Does it have to match the colour? Because that can be very difficult and if it nearly-not-quite matches it could look better to go for something more different, that tones but doesn't match?

Just checked the same brand at debenhams and they have this

Or a sparkly evening wrap would be warm and pretty, like this Are there other bridesmaids? Have you spoken to the bride about adding a cover up? She will probably have a preference for what you go for. Worth agreeing in advance to avoid ructions on the day!