Hahaha, oh, things have changed
The first one was made sometime during mid-April 2016, and the newer one was made April 17, 2017
So, the one on the left was made just a couple of weeks after I got my very first drawing tablet, I've learned a little bit more about how my drawing program works since then!
There are still things to learn though (like hair. seriously, hair is my enemy when drawing) and I look forward to the coming year and how much I'll improve over it!
I'll upload the image on the right individually if you want to have a look at that as well