Natural versus Synthetic Brushes for Watercolor

watercolor of a girl looking at the viewer, she has curly, short purple hair, and glasses.

My birthday was a couple weeks ago, and what does my wonderful wife do but take me to an art supply store? (She edits these posts, too, because that's just the supportive woman she is. <3) A tool I've been thirsty for since I picked up watercolor in high school is a natural sable hair …