Hi there! Good job on challenging yourself. I can tell from the way you constructed the face you already looked into drawing the volumes of the face. If i were you i would not worry about shading too much as of now and mainly focus on practicing drawing volumes without shadows. I personally like to draw a box for the face that is slightly taller than it is wide and deep, and draw a loomis head inside it to place the features. i would really recommend looking into the loomis head and how to apply it yourself, it is super helpful to think in 3d!. For the eyes, don’t forget they have volume as they are essentially orbs in our eye sockets and look different from all kinds of angles. | Artwod Feedback