you can also go to http://www.gtsartists.com/ for the entire comic so far and it's updated regularly as he makes new chapters plus both the site and comic are free. Also the you see the growth better as it doesn't have to load a new picture the same way.
For anyone who hasn't tried this on PC (or any mobile device that's fast enough), I got a little trick. If you load all the images that has a "sequence", then backtrack with backspace to the beginning of the sequence, immediately mash the forward button and see it as if it's an animation! It's much better than looking at each image just to look at an unnoticeable difference.