Oh, I should've seen the latest one earlier.
It was quite a lot easier to edit.
Also way easier to get this version focussed right.

Well, I did something and it shows the effect really well, but a bit exaggerated.
*No glasses or anything required, except a small screen, no monitor.
You'll only need to focus your eyes so, that the image appears 3 times next to each other.
(It's a bit hard to get in focus because of complexity)

With red being in front and blue in the back.
But the effect can vary in strength between people.
For me they are like 1-2 mm behind each other

Using relatively few colours, having solid edges and skipping a large portion of the colour spectrum gives the strongest effect.
2/2

That's funny, I don't know if it was intentional, but this image has a really nice 3D effect for me in addition of being another really neat artwork of yours.

It can be a side effect of some glasses, which can have some natural chromatic abbreviation.

1/2