My bag listings have 12 pictures, and I agree, sometimes it isn't enough. I make collages too. However, there aren't 8 angles of a twilly scarf that will show more than I can show in two pictures. For keychains or charms, I usually only do 3 pictures and that is more than enough - front, back and edge. Same for a blouse or tee - front and back is all you need.
I picture close-ups of all details, like labels, stitches, buttons etc. you never know who will buy your blouse and what reason for return they may claim. I feel more protected using maximum pictures, even if it's a scarf, dress, blouse, or small leather goods. so for me it really makes sense