How to create Fresco illustrations without extra artifacts and good quality to use in a printed book
I have some avatars I've created using Fresco and want to then put them into indesign for a book I am writing. I am drwaing them freehand and using the fill tool. However, I notice that as I'm drawing, erasing things, using the fill tool etc that there seem to be a lot of anchor points and extraneous information that carries over when I open the files in illustrator. My teenage son (untrained) did a clean up by redrawing them and he said not to use the fill tool, to instead use the brush to fill in the color. Which seems like a lot more work that I'm not sure is necessary. However you can see the difference between the original version on the left (mine with multiple iterations), and his.
When I place them into indesign I get the following message:

Then when I say 'ok' I get the following terrible looking quality. Which ok, I understand might just be the lower fidelity display settings so I'm not sure if it's really a problem or not?

As when I go to preview both look fine (the image below). Any tips and advice on how to best create in Fresco, export from illustrator (eps or .ai file?) and import into indesign would be most appreciated. I'm self-taught as I go doing the minimum to get this working as it's not my main career. I would love some help!

Thank you in advance.
