Process execution

Hello to all,

I am setting up my process in Bonita and I would like you to guide me please. Here is my diagram, as soon as the initiator sends the information, the superior receives, now he must validate or reject the mission. How do I configure it? I have to make a validation and rejection form for each task? or how should I do it? So that when he rejects the process it goes back to the initiator or when he validates it goes back to the person after him?

image link : https://ibb.co/yNK5P63