Improvement! I have some of that (I think xd)
The most notorious changes have been on my characters faces and bodies. Now they seem more human!
But I have not stopped there! I also have been practicing backgrounds, and instead of using a photo reference with the not so good extract line, I have learned how to do it myself and make it look like in manga style -or something close to it.
I have planned 80 chapters for my series, and I am in the 20's right now, so who knows how would they look at the end! People will think that the series changed the drawing artist, or something, ha!