We can use the inline instructions greyed out to hint or remind the users what that line will be used for ( or even for who to see) Good example of - required field using a small asterik - great use of space: clean form sizes stacked around each other
Good example of an active state, letting users know which section they are currently in. From there we can add a bread crumb style title so they also know what subcategory they are in when the fly out sub navigation dissapears.
Questure on Behance. Regarding the look, "imagine pushing the pause button on your life and suddenly an interface appears." The minimal UI over a calm, blurred background has a neat effect I don't believe I've seen before. Simple, and original!