My son is having a civil partnership in May in Vienna! It's quite late notice and I need something to wear. It's going to be informal but I want to look party-ish in a stylish way if possible. I'm 5'7'', a size 10 and tend to look best in autumn colours. I prefer looser fitting clothes - definitely no tight tops as I don't have much in the bust area. I am a bit self conscious about my upper arms so would prefer not sleeveless. I was thinking about a maxi skirt with a top or a dress. I've been looking but haven't seen anything quite right yet. Budget is up to around £300 but I'd prefer less if possible. Can you help at all?