Your anatomy certainly improved and your placements of speech bubbles are also much better - great work!
Comics are great way for both 'recording' improvement as well as motivation, because you have to keep to a schedule and most of the time working on a comic can help one break out of an art block. Not to mention a treat for a reader when you can see the artist improve as you read through the pages!
My comic pretty much forces me out of art blocks because I don't have a big buffer so I have to constantly work on it every other week. I started it in 2012 so...I think I was in 9th grade at the time? Either that or 10th, I can't remember. Granted, after a few months in 2012 I stopped working on my comic and picked it up again in the summer of 2013 so theres a big ol improvement gap in the prologue
anyway cutting to the chase, first is the first page I have uploaded (august 2012) and the second is an update from last week.