I think you nailed it.

Hi Michael! :) A bit late but I hope it's still useful to you. The main thing I would say is that there's the tendency to keep the features close to the face plane marked by the basic guidelines, i.e. the edge of the loomis head. When placing the nose, it would be more helpful to mark the angle/curvature created when it protrudes out from the face plane as a guideline beforehand, in order to counteract flattening the face--like in the Emma Watson example (though note this angle changes for everyone). Some smaller notes would be to observe the indent below the mouth that marks the chin, position the eye slightly lower and inwards, and shrink the ears just a tad. I know the side profile can be a rather tricky angle, and you got pretty darn close, just some tweaks for improvement. Best of luck to you on your art journey! :)

Perfect.

I wonder if it would help you to draw a larger version. It seems like it would be hard to be really accurate (at least when starting out).

nice! Looking at the angle from the ear in relation with the eye, he is looking upwards. however, his chin is not pointing up in the same angle. if you would draw lines over it, these lines should be parallel. Same goes for the mouth. I hope this makes sense!