Here are some head practices I did, I decided to practice this because I really have trouble figuring out the perspective of heads. I can't really trust the perspectives I assume the heads are in, it will be wrong once I broke it down.
I believe the gesture of the head is somehow messing with how I see the heads in perspective normally thus I decided to practice using Andrew Loomis method's more and use the features of the head and its as the guide.
I also don't know if this is right but when practicing do you guys normally stick to a certain style of drawing so you'll be more consistent or be wishy-washy as long as you got the fundamentals down and it looks good, it's okay?
Practiced figuring out the perspective of eyes too. The pic on the bottom right is just a breakdown of someone's fanart that I did on impulse lol ( her art is very nice! @_tuu0 on twitter)