Help Verification BPMN for my final theses

First i would to thanks u for clicking on this task :slight_smile:

I Have to do a a final thesis about the analyse of a company and i would like to know if my BPMN is correct !
U dont need to check the different task of the BPMN but just if u could see if i didnt make any mistake in the different annotation of the different process :slight_smile:
Here linked the global vieuw of my BPMN :

Thanks u a lot in advance for your help
It means a lot to me <3