That's a good face for saying you have trouble drawing them
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Anatomy-wise, I'm not 100% positive, but I remember hearing the art teacher say once that the eye go directly in the middle vertically, and in this guys face, they're up a little bit. And for the spacing of the eyes, you should keep in mind that one imaginary eye should be able to fit between the two. The sides of this guy's face seem a little wrong too; I'm pretty sure that, from the temples to the cheeks, you could get away with a straight line, or if anything, exaggerate the indentation a little less. As for the chin and cheeks, I'd say they look fine for now, though I don't know much about that area of the face, so hopefully somebody else can help you out there.
Palette wise, I can tell you why it looks better when it's zoomed in: the difference between the main face color and the shading is basically non-existant, so they end up blending from far away. What you wanna do is increase the contrast between the shade and midtone.
It's a good start, and is going to look excellent when it's finished. Good luck!