If you need approvals in an order, then sequentially looping over the array should do the trick. For the approval, you can use the send approval email action.
Automated flow with multiple attachments

Vishal HINGMIRE
1
Reputation point
HI,
Wondering to create automated flow with multiple stage approvers, multiple files need to attach.
Triad solution of creating array, but it work only for sending mail with attachments.
For multiple flow still using item link, but not good, to ask approves to open complete list & then search for attachment file link & then access it.
Also control condition with value not possible.