Love the idea of a jacket too. Or how about a denim waistcoat (as per Angie's thread last week?-)
I really love the look of asymmetrical tops with harem pants (Angie's outfit was fantastic). I think longer tops can work as long as they are fitted enough... And tops tucked in and belted looks will be gorgeous of course, with your teeny tiny waist!
A floaty top could work too if you reign in the volume by wearing a more fitted layer over it.
How about a graphic tee and a denim jacket/moto jacket/chanel-esque jacket/patterned cardigan?
Or a puffed sleeved, ruched top?
A wrap top?
Add your obi belt?
Something with your shaggy waistcoat?
A few more visuals:
http://www.polyvore.com/street.....d=18643680
http://www.polyvore.com/rocket.....d=20314997
http://www.polyvore.com/sem_t%.....d=16694785
http://www.polyvore.com/see_ya.....d=13197470
http://www.polyvore.com/safari/set?id=20125736
http://www.polyvore.com/loose_.....d=18427846
http://www.polyvore.com/summer.....d=18277575
http://www.polyvore.com/heard_.....d=11560155
http://www.polyvore.com/fashio.....d=13955215
http://www.polyvore.com/bridge/set?id=11036523