some of them might be airbrushed, but the better your brush is, the less stroke marks you'll have make the color a little bit thicker and use a nice brush you might have to put a few lighter coats on to get the effect you want, and then well I also have used the brush to put the color on and then used a paper towel to blend the color in and get rid of the marks.
Jen
I painted the entire Colette style cake in my album and had very few brush strokes. I use sable brushes and I only paint with lemon extract. The oil in the extract helps to diffuse the luster dust. I get more brush strokes when I use petal dust. Also, you have to get the consistency of the mix just right. If you get it to thick, you'll just get clumps and brush marks. I also repaint over, and over, and over, until I get a smooth and consistent color. Sometimes that means taking some of the luster dust off.
Good luck.
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