I want to know z scheme .explaination of the z scheme with the diagram

The Z-scheme includes the different energy levels of proteins arranged in order.
The order in the image includes the transfer of electrons in a Z diagram manner so its called Z scheme.
The flow of electrons occurs from PSII→PQ→Cytb6f→PSI→NAD reductase.
The proteins are arranged as per their energy equivalents.
The electrons are obtained from H2O molecule.
Excited due to the sunlight energy.
Transfered from one protein complex to the other.