My garden gifts me self seeded zinnias in the summer. I love painting them. These mugs were in a firing that had a different atmosphere and the effect is lovely  https://amywoodartist.com.au/phew-last-minute-firing-beautiful-pots/

I brush the yellow on while the mug is still spinning on the wheel. The slip trail comes later and finally the zinnias when the mug is almost dry.