Hi
you may add 'Approval with custom response' when the condition is met - the attachment is there or other criteria in your flow.
it will send an email/approval item in Teams
it gives you various options.
There may be a limitation to show only 5 items as custom response for 1-10 score scale in outlook.
But I tested and works fine all 10 custom answers values 1 to 10 are there.
looks like following in outlook message:
similar in teams Approvals
I would recommend adding a column 'ReviewStatus' (SharePoint if it is uploaded to a document library) with some status values (numbers for better filtering) which control how far is in the process of review and use it later in flow in its conditions or update when you collect from all reviewers scores.
Specially if you use when item is created or modified you can setup Trigger condition to start when the status has specific number only.
Not sure what do you do with scores, but maybe you want to collect them and do some calculations.
I would create separate list to collect all answers with the related document library file ID, so you maybe want to do a calculation once all scores are collected and output to a report.
*Zdenka