Today I was doing Elodie's face up, and decided to use paints. But when I got the thinner, it was this sort of globby, thick thing, which cancels out the point of thinners. And it really thinned out the paint so it was really light. So I ended up using all dry colors.
So, was I supposed to use a retarder instead? Because if the retarder is also watery, it would thin out and make the paint dry slower. Or was I supposed to be patient and layer up the nearly invisible paint?