So that's how to reference with digital art. Cool. Thanks for sharing it.
It is! I always make sure to try and break the pose into shapes and work from there. I also like to use arrows to show the flow of the pose!!! I then open it next to my picture and draw the shapes scaled up in size as I draw on a 4000px x 4000px canvas usually. You can also use posemaniacs.com for referencing,
if you scroll down the right side and click “model” it has hands, a torso, and a head for practicing with.