Fun fact, making these linings is harder and longer for me than action scenes. Mostly due to the size and thought process on making the angles good, because some angles are yes, hot, but cover the face and stuff which is not ideal. So it takes a longer thought process compared to me just sketching and lining out action scenes which matter more about the body and full picture than faces.
On average an action scene takes me 1-2 hours to line that already includes the initial sketching, these take me 4 hrs a piece just to line