exporting images from page layout and ability to rename

I have a multi page document that is still receiving changes.
Each page contains the same image with different sizes. (Ratio based ) as each page layout gets approved I need to export some or all of those images per page and have them renamed so they are individual images.

Is there a way to do this in indesign ? 
so far I have been getting the page exported but not the individual images on the page 

and I have only found a way to name per page not in a more detailed way 

I've resorted to setting up individual documents pages sized per image and copy pasting Into each then saving out. Very tedious and time consuming 

wondering if there is a better way ? 

thank you!

ben