I have no plans whatsoever to reboot Grassblades - I've committed to the story in its current shape, and am happy enough with it that I don't feel the need to change it, despite the flaws it does have.
HOWEVER, if I ever wanted to reboot it - and that is a big if - I might do something about the pacing of the first chapter. It's a little bit slow, especially the first five or so pages, but that's it.
I'm not generally a fan of rebooting/redrawing stuff unless the original files are totally lost. The reasons being two-fold.
1.) Your readers don't care as much about consistency in art-style as you think they do. Most people are aware that in webcomics, art improving/changing over time is part of the package.
2.) Rebooting/redrawing stuff, unless you need to fix major structural faults in the storytelling, risks getting you stuck re-doing the same things over and over again. I've seen it happen to so many people - they get stuck tinkering and reworking and making their first pages "perfect", instead of finishing them. Finishing stuff really is more important than making really good stuff. Making really good stuff is something that happens while you learn how to finish stuff - and a flawed finished story is worth more than a perfect, unfinished one.