Re: Drying shift when using white
from the video description: "Opaque white options for use with watercolor are numerous with advantages and disadvantages for each".
Does using other than standard (transparent) watercolor paint make the addition of another water-based medium a "mixed media" work?
ie, I have a simple beach scene (from a kid's coloring book) that I did in Pang WC, but I forgot to leave white strips for surf. So if I add white --either gouache, acrylic, or casein, does that make my piece mixed media, or is it still a watercolor?