Passing Arguments between an EntityReference field and an EntityReference View
Add a contextual filter of Has Taxonomy Term ID


Select Provide Fixed Value and type Fixed Value. For fixed value type the ID's of your terms separated by a comma. (You can find the ID of your taxonomy terms inside the edit url when you edit your terms)




Scroll all the way down to the MORE section.


Click on MORE and check mark allow multiple values.






For your other view, use Author Uid and follow the picture below.