What coat to wear with this dress?

[BoardwalkSoul]

I'm going to a wedding next week, wearing this dress (hopefully I've managed to upload the picture). I've no idea what sort of coat to wear. I'm going to need to cover my shoulders in the church anyway, and as it's supposed to be 12 degrees I will need a coat when travelling there and between the church and venue.
I'm wearing bright blue shoes, although could also wear gold or leopard print I think.
Can anyone suggest a style/colour that would be suitable.
If it helps I'm on 5'7", size 16 pear shape.

Pretty dress! I'm thinking a neutral colour would be best and something smartish if you're planning on keeping it on in church. How about this biker jacket or this if you like leopard print? I like this too but you might think it's too much!

Thanks very much for those suggestions. I love the leopard one.