Wiring for smart switches
Won't work.  

From the 3-core cable, and from the fact that all wires of each cable go to 1 switch, it's perfectly clear that this is a 2-way (USA: 3-way) switch.  

And further, it is the switch on a "spur" line.  

In this location, those three wires will be 2 travelers and a switched-hot.  None of the wires are hot or neutral.  So it is not possible to add a smart-switch here,  except by greatly reconfiguring the entire circuit. 

However, it may be practical to fit a smart-switch at the other 2-way location, depending on which wires are there.    If it, too, is a spur, then smart switches will require a dramatic reconfiguring of the whole circuit, and to help you there, you'll need to supply a lot more information about what is going on inside the other switch box and at the lamp.