Prom dress question

Yare
My dress was hemed and how they did it was shorter in the front to show my heels and longer in the back... It looks gorgeous and I like that I won't have to worry about tripping over it or other people stepping on it... However is it okay like that for prom??? Or no ? This is my first time going and I want to look nice and appropriate under is a picture of the whole dress before it was trimmed  and after