What can I wear with this dress?

[Cumberlover76]

I've got this dress that I'm thinking of wearing to an outside wedding in a field, so laid backish, in a couple of weeks (weather depending) and need something to wear over in case it's chilly or later in the evening. I don't have much to spend, maybe £30. Any suggestions? Thanks.

[MoonlightandMusic]

Something like this in a different colour?

Or this one in mint?

Not sure how warm it would be, but looks like might work with the dress colour