We are huge fans of dark walnut stain, and therefore love the wood choices in this design, along with the clean modern aesthetic. We noted, however, that you oriented the room / skylight in the wrong direction. The roof slopes from the entry door wall at its peak down to the window wall at its lowest elevation. You show it perpendicular to the proper orientation. Regarding practicality, while the larger wet area makes a lot of sense, we worry that it might make the rest of the bathroom too cramped.