Hi! You've captured the angles really well here, so great job! References like these are great tools since they show the planes of the head, and you can really use them to double check your drawing, especially when you're practicing something challenging. On your first image, I'd recommend really studying your reference and being sure to draw what you're seeing. The forehead planes are pretty straight there, and utilizing them can help keep your proportions accurate. For your second image, I'd just focus on how the facial features overlap. If you look at the reference, you can see that the furthest eye is mostly covered by the nose, and the nose protrudes out over the cheekbone a bit. Overall, the angles and positioning of your heads here are really great. Excellent job at taking on something you want to improve on. Check out some head construction lessons like these, too! :) https://www.proko.com/course-lesson/how-to-draw-the-head-from-extreme-angles https://www.proko.com/course-lesson/peter-han-draws-heads-in-every-direction