Life Drawing: Homework Ear/Eye/Hand Study

I drew these over the weekend but I forgot to post them. I always try to practice ears since when I draw portraits I tend to draw really basic shapes then just ignore them instead of making them actually look like ears. I quite like the eye and ear drawings but I'm not the biggest fan of the hand sketch. I drew my own hand while on the train really quickly so I admit I didn't have high expectations for that one.