You did a significantly swell job! Though I would keep the bright neon colors of the 2012 pic seeing your wolf girl is in a rave, you did a splendid job on muting the wolf girl's colors in the 2017 rendition enough to make her appear more aesthetically pleasing to the eyes of those people that hate sharp colors like neon with black (not trying to borrow terms from another art criticizer).

I would say though (and this is my opinion) that I like how you shaded on the 2012 one more. Yes the 2017 one looks more organic but I find the use of the smudge tool and gradient tool a bit much. I hope you can get a happy compromise in this picture as I followed your gallery and didn't have this issue or as much of an issue.

Overall, I like this compare and contrast and it has shown how you improved greatly over the years and I hope you continue improving!