The difference between Winsor and Newton Galeria Acrylic vs Professional Acrylic paint is down to the quantity of the pigment used. The quality of the pigment is not compromised, the same pigments are used in both ranges, but the there is less of a pigment load in Galeria. We will examine the differences here by tinting Permanent Alizarin Crimson with Titanium White. You can see that the Galeria Acrylic appears lighter than the Professional Acrylic even though they are tinted with the same amount of white. This reflects the lighter load of pigment in Galeria, and is something to keep in mind when choosing which formulation to use.