lace challenge

Ah...so this Friday is the proverbial "office christmas party", and unfortunately it will actually take place at work.  So we close up at 5 and then reconvene at 5:30 for cocktails and such.  All of the previous parties have at least taken place on days we don't work, of off-site, so I haven't decided whether to go with a transformable outfit or change fully into something else (not a very dressy office, not that I pay attention!).  One thing is clear- I'm into the lace.

So the options I'm thinking of are:
The transformer option-
Since I'm so into cinnamon tones this week, I was thinking of wearing this to work:

H&M dress with sleeves removed, ancient Abercrombie cardigan, UO belt

and then throwing a lace dress over to evening-ify it, with some amber accessories:

Bobi cotton lace shift, H&M dress, UO belt, would likely wear with these:

 But I think what I'm really hankering after is to just go for a full change and green dress-ify myself:

Vintage green lace dress, feather brooch from Anthropologie skirt, Fornarina green bow heels

um, well, I would appreciate your input but I might have already made my decision!  After all, this lil' green dress has actually hung in my closet for about 8 years waiting for the right moment, sometimes too tight, sometimes too prim, or even (unbelievably) too green?  And I do love the feathers with lace...

More contrasty shoes or tights maybe?  geez, what colour tights does one wear with emerald green?