Wedding help - Please shop for me

[deadduck]

Well, not literally, but...
I've got to go to a wedding in 9 days. Registry office and party in the evening. I've not been very well, signed off work for stress and quite depressed. The idea of going shopping at the moment fills me with dread, and I'm not even going to tell you how I view myself at the moment, but I know I somehow HAVE to look ok-ish on the day (very close family member getting married).
I'm mid-40s, 5.5 and a size 12. I've got some good nude pumps from L.K. Bennett that will probably go with a lot of things so hope I won't need shoes. I think a need a dress and maybe some kind of wrap/cardie.

Can you help me? Any ideas, links etc would be most appreciated. If I can mail order it in the next week, even better. Anything that you think might look pretty...please?

What's your budget and what sort of colours / styles do you feel comfortable in?

Budget of no more than £100, style something simple/classic (not frilly or fussy), and I like green/earthy shades. Thanks [simile]

fail!

What about something like this

Silk?

Floral?

Longer floral?

Any of these look promising, or wrong track?

Thank you both very much. I really like the White Stuff and silk TK Maxx one, they are gorgeous!

If you can do yellow, I like this one too

I love these total bargain too.

Thank you closer. Sadly yellow is not for me, but I'm still drooling over the silk one, it's a serious contender.

I love the Lindy Bop ones, Sonthate, they are gorgeous. They wouldn't suit me but I they'd be great for my daughters with their tiny waists.