It is very hard to see what is connected to what both in the pictures and also in real life. I was also not in a position to get under the car to take any pictures.
The hose from the top of the expansion tank runs along the top panel in an oddly shaped hose and ends up at one of the turbo cooling pipes as seen in the 4th photo disappearing under the heat shield just above the wastegate actuator.
The other side of the turbo feeds to the small pipe coming into the side of the thermostat housing as shown in the last 2 pictures.
The other slightly larger blue pipe heading rearward in these 2 photos connects to a pipe that runs back and connects to one side of the heater matrix.
The other side of the heater matrix runs around the back of the head and down to the oil modine under the inlet manifold.
The other side of the modine feeds back to the rear of the head near the coolant temperature sender as seen in the 3rd photo by the dipstick.
The lower pipe from the expansion tank heads down as seen in the second photo and connects to a solid tube that runs along under the radiator. At the other end of the tube is another flexible pipe which is very hard to see, but I believe goes to the smaller pipe on the side of the water pump. The larger water pump pipe is a short link between the pump and the thermostat housing.
The two large radiator hoses obviously feed to the two pipes on the thermostat housing.
Hope this helps
David