Hi @filipa_fernandes great to have you here 
Like @nejcek74 I’m a not entirely certain what it is you are asking us.
However, based on the poses and the lack of background in the pictures, I suspect this is the dress you fell in love with, not the one you made? And you’re maybe asking us how to draft such a dress?
In which case, apart from the collar (more on that later) you just need neck and shoulders and then draft an elongated A-shape from there down.
Obviously, it’s entirely dartless, so this dress will not work for curvy bodies, but I presume you are aware of that.
You can start with something as simple as Aaron, then just extend the hemline downwards and outwards. Change the neckline and armhole options to get the shape you want. I clicked around for a minute or 2 and ended up with this:
You should re-draw the side seam to be a straight line instead of curves, but apart from that this should be a good start. You can turn on paperless view to check the length so it’s a good length for you.
Both the hem ease and length our outside the range of the slider provided, but you can enter any value manually (which is what I did).|
Here is a link to what I did:
The one thing that this won’t do is the collar. Because the collar will lie flat against the body. As it’s tyipcally supposed to. In the picture, the collar rises from the body. Personally, to me that’s a flaw rather than a feature, but if you want that, you should ensure that there is extra length in the neckline, which you can do by adding fabric on the shoulder seam, add to the neck side and then taper that to zero on the shoulder side.
But, I very much doubt that that is what made you fall in love with this dress, so you can also just ignore that part.
