Absolutely love this kind of thing, out of interest did you/do you think without the Apple pencil this was achievable on older iPad's like the Air 2, iPad 4 etc?
MaloCS sort of said the same.. And ill go further. I'm a huuuuge Apple Pencil fan, but there isn't a single piece of art in this thread which *technically* couldn't have been achieved with another pressure sensitive stylus.. Whether it'd be as pleasant and straightforward for the artists in question is another matter.
There are artists pumping out photorealistic and amazing painterly art with a mouse, or in MS Paint, haha. I think the best thing about the AP is how immediate it is and how close it is to what we've used traditionally, but if I wasn't a really art focused iPad user id still be happy with my Jot Touch 4, even if my output was slower and more frustrating.
Best place to look is the procreate forums - there as some artists on there who are finger painting and others using dumb styluses. :O and yet others using things like the Wacom creative stylus and loving it - despite others finding them a pain in the butt. Tools don't make the artist, I guess - and different peoples workflows & styles are more or less compatible with different things.
Saying that I wouldn't trade my Apple Pencil for any of the other styluses at all - the tilt sensing is really damn good and not otherwise available outside of desktop tablets.
I still can't decide how much of the jitter I am getting is from having a tremor and from having a glass screen protector on the iPad. Any additional thoughts on the screen protector wobble issue?
I definitely had a extra jitter from my glass protector. Not from any sort of interference though. Even if it is because of tremors, without the tooth of a Matte protector there's nothing holding the nib in place, so your lines can't easily be as steady, if your style is a more small, slow deliberate, detailed one at least. For fast swooping (painterly?) styles it wouldn't be a problem but for cross hatching and stuff it was highly unpleasant. Glass didn't feel like drawing on any surface you'd choose to draw on naturally.