i seem to be rather behind everyone else but here goes so far. i chose a feather as my object and contrary to my ideas with coffee which might be rather messy i used a tea bag of my husbands to colour the pages with dabs of gesso and masking tape masks. not sure i have followed your instructions to the letter Sian but the above is using graphite line and a bit of shadow with water to merge the line.
i then chose a second feather using fine brush with added lettering
Day ? using pencil with water and ink. so i am now off to put a strong lamp on as it is sooooo miserable out there