I am going to my graduation at the beginning of September and there isn't a dress code as such they just suggest somthing smart, either a dress or a suit. No way am I buying a suit as I just wouldn't wear it again - I don't have that sort of work at the moment. Besides it might be too hot.
I quite fancy a dress but I haven't had a dress for years - probably the last one was a maternity dress 11 years ago! Failing that a smart blouse/shirt and skirt - I am thinking something chiffony for the shirt but I don't know.
I am a size 18, 5ft 7" and I need sleeves, long or short but nothing sleeveless or with capped sleeves. I am pear shaped rather than apple so anything straight up and down looks bad. I need it to have a bit of shape.
The gown is mid blue so it will have an effect on the colour of the dress -tiny picture here if it helps
Oh and I don't wear black much unless it is a skirt - I'm too pale for black. I don't like grey much. Navy is better on me but on the whole I like colour.
Any ideas for smart stuff please - I want to look nice for the official photos too. 
Thanks.