As someone who badly needs to learn how to draw realistic human faces and expressions, I can say that these are going to come in VERY handy as reference material. Thanks for shading, and congrats on the DD! C:
Most of these don't seem very useful for your average daily range of expressions... unless you're a fan of making and drawing exaggerated expressions like me! These are great, thanks for compiling them for use! Congrats on the DD!