You've got a very unique comic here! I read up through chapter two so far, and the general strangeness and mystery was enough to string me along the whole time.
Art-wise, you've definitely had a ton of improvement, even just from the start to the end of chapter 2! Pages 1-3 are a little sketchy (page 2 in particular is... notably worse quality than any of the other pages) but I don't know that they're necessarily worth re-doing, at this point at least. If you ever reach a point where the story is concluded or you're wanting to print a book off, then they'd be worth touching up probably xD
Since the update already extends beyond where the art is kind of sketchy though I don't think it'll turn away too many readers. Especially since your banner and Cover page at the very beginning already show off where the art is going!
Anyhoo, I dropped it a sub~ I don't have anything quite like this in my tapas library and I'm interested to see where it goes.