Wow, you wanna talk about old art....I finished a lesser version of this back in 2015 which was literally a draw over of my 2013 version saying it would probably take me many months to finish. I wasn't wrong there. It ended up taking me two additional years to get this public...good lord.
Instead of summarizing all of that info, I'll just link to the two other places this guy is spoke of if you want to read more. I'd like to point out the art itself is from 2013....so old...but anyway that's its updated appearance even if the art is old. =p