Hey you’re right, the balconies get bigger as they go up on some of the corners.
Looking at the tower from the north and it appears to me that the vertical portion of north-east corner is angled. I took another look at the renderings and it appears to be a design feature that I had originally chocked up to the perspective used for the rendering. As more cladding goes up it might be something subtle that adds to the appearance of the tower. I'm looking forward to seeing how it shakes out.