Your dress length is perfect. It shouldn't touch the ground because you will either step on it or find yourself holding it up. You should be able to walk comfortably in it without even thinking of it getting in your way with that length.
Ditto jagore. Hard to tell from the picture but if it's slightly off the floor with your shoes on, about half an inch like skippy suggested, you should be good to go.
Whoever said it was supposed to be happily ever after is a big fat liar.
It's good. You do not want it too long. My seamstress insisted my dress needed to be touching the floor which is not good. On carpet, I start to trip on it and you cannot see my cute shoes even on hard floors.
i think it's fine. don't make it too long that you'll end up lifting it when you walk. try the gown with your shoes on too. that will help you see if it's not too short though.
Re: Delete
it looks fine, beautiful dress by the way