Old but new?

I have been working on Mermay2021 prompts and am trying to draw faster at a moderate pace. I was going over sketches when I remembered an old drawing I did years ago but never posted on tumblr. After looking it over I decided to retry drawing it again with updated details to see how my skills were then versus now.
This felt like a new learning experience in updating old works since I had to redraw the same pose with more thought put into it.