I think when dress codes aren't in Emily Post one has a lot of latitude!
What's your weather like these days and how are people dressing -- are they well into spring/summer colors or still wearing lots of black? [Though I guess black and "artsy" crowds are trans-seasonal, ha.]
I looked at your album and think you have a lot of options; for a "CE" May night where you are in Work Mode I like:
http://s380.photobucket.com/al.....009010.jpg
http://s380.photobucket.com/al.....010001.jpg (with some sort of sweater or jacket)
http://s380.photobucket.com/al.....ug8004.jpg
(minus the dark jeans, but maybe with other slim pants or your white jeans? I like this one with your long black sweater on top as well, so if it's colder maybe black sweater/black pants/pale tunic dress?
If you feel like you need to skew more "elegant" than "casual" maybe the jacket from this outfit paired with pants (not sure if that's a long skirt or pants) + funky shoes + more colorful purse? And probably a camisole if you have any concerns about cleavage during a work event.
http://s380.photobucket.com/al.....rt3009.jpg (but with a colorful purse)