Great start! I see you have a knack for rendering already. I think you're also already pretty good with proportions, just keep an eye out for how you align the features instead. I noticed the direction of the guidelines, mostly on the first one, were starting to deviate from each other, so it may cause the proportions to look a bit different than the reference. Even at this downtilt angle, the direction of guidelines tends to be pretty uniform as they all follow the same perspective. I drew an example down below, let me know if it's useful, and keep up the good work! :)

That was to establish the side planes of the ball you start with in the loomis method. It is 2/3 of the ball.

It seems you got the bottom of the face just fine but the top of the skull looks too large and the ears are too high on the head. The top of the ears should be a bit more in line with the eyebrow I think.

Hello! I've noticed your recent posts--really nice work. Something you'll continue to practice as you progress through the course is the understanding of form and how it affects your drawings. In this for example, the eyes are rather tricky because of the curvature of the ball plus the mass of the brow ridge hanging on top, making things barely visible to see and seemingly distorted from the view we are used to. Keep in mind not to fall into "symbol" drawing--that is, drawing shapes as the ideas we are used to, like an almond shape for an eye--and instead really focus on what you see in front of you when studying off reference. Once you combine this with the understanding of the subject's form (eyelids, cornea, tear duct, etc.), you'll have a good, solid foundation for drawing.