Hi @Doris!
One thing to add to the helpful feedback you got from @stephen.trumble - you might want to reconsider the re-send of an email that has not been opened.
First, there will inevitably be gaps in the “has Opened Email 0 times” conditional split you’ve created, and it’s more complicated flow logic to add a fallback to address the gap. Sometimes, depending on how a person opens an email, there will not be an Opened Email event recognized on their profile BUT there will be a Clicked Email event recognized on their profile.
Second, although it used to be a recommended practice, there’s less benefit now to resending emails to those who did not open the first time. Most of the time, it’s better to just send a new email, and if there’s critical information that people might have missed from the first email, you could repeat it for them as a “P.S.” section of the email.
When people are skimming email content, the P.S. at the bottom is a surprisingly high-visibility section. That’s what makes it a useful tool for reminding people of information they might have missed.