Wow, killer heels Shell! I admire anyone who can walk in them.

If you wear the dress without the cardigan, how about some chunky yellow beads (am I wrong in thinking that something white might look fresh too?), alternatively chunky pearls when worn with the cardigan.
Or maybe a pair of great earrings or a fabulous bag. The other ladies will undoubtedly have more colour suggestions.

That mustard looks great. I suggest adding a red necklace for a bit of contrast (whether you wear it with or without the cardi).

You look stunning in the dress. Your legs are killer and the shoes really take the outfit up a notch.
When you added the yellow cardigan I felt it took so much away from the total look. It seemed to cover to much and felt to heavy. I think a light weight wrap would be nice.
However please remember I just shoot from the hip with my opinions because I am definately still a style student. Also I dress myself in a very undrstated manner.

i love the idea of a wrap, san. ive been looking for an excuse to get a pashmina, so maybe that would work with this outfit.

i'm kind of digging the idea of a red too. i have a reddish-coral colored necklace that might look good with the dress. i was thinking maybe the dress was a little too bold with all the different colors (purple, black, brown, and yellow), but i think you're right on with the red, antje.

I love the dress! I would personally skip the necklace, I would go with a chunky bracelet or maybe some funky hoop earrings. I do like the idea of a bold contrasting color like red though. The shoes are awesome too.