With the main sink unit in place, the curved end panels can be scribed to the shape of the wall and and the the left a lower drawer unit fitted which will form a space for the TV etc.
To the right of the sink unit by the fixed rear bed there is a tall wardrobe. You can see the panel construction here which has ribs within a plywood skin (the inner skin is yet to be fitted). This reduces the weight dramatically but is very robust and strong.