Feedback on model

Hi, is it permissible to post a process model here to ask for feedback? I’d like some comments on the logic and syntax of my uses of intermediate events, event-based gateway, throwing of escalations to non-interrupting event subprocesses, catching of messages by interrupting event subprocesses, and throwing of cancellations and escalations from off-page subprocesses to their parent (collapsed subprocess). I feel I can’t see the wood for the trees.

I think in this forum you will rather find help for our bpmn.io toolkit. I can really recommend the Camunda forum for asking general BPMN modeling questions.