Type of veil

Beautiful dress choice!
It may be useful to know how long you intend to wear your veil, how long your train is, and how important the back of your dress is to show off all day, to you.
I have a similar dress, with smaller details at the back and have done for a full, cathedral veil because the dress is simple enough (and long enough) to take it, and I intend to remove it after church and photos, before entering the reception (marrying in a church then driving to reception venue).
If the back of the dress is important to you and you want it visible all day, I would opt for a shorter veil, like an elbow length, checking the veil doesn't cover the detail you want to see. You could even go for a bird cage veil, for something a little more quirky, and add a bow to it to tie in to your dress? Depends on your style!
If you are, like me, only planning on your veil for ceremony and photos and aren't bothered if the back is slightly obscured by a veil, then you could go long. I can't tell if the bow has the loose bow ribbons below, but if you don't mind it covered, maybe the length of your bow ends, or your train length.

Without seeing the train it's hard to know the length that would work, but the guidance I was given was it is best to be the same length or longer OR fingertip or shorter really. Having a floor length on a giant train might look a little out of place.
It might be worth trying on some with your dress in a bridal salon (most do 'accessories appointments', to see what you like and don't like on you with your dress).
Best of luck!

This dress is exactly what I am looking for! Can I please ask the designer?

Thank you x