Precision and Perfection

I've read or been taught that in Islamic art and designs, the artist or craftsman will make a mistake or a flaw in the design on purpose because only Alah\God is perfect. I am not anywhere skilled enough yet to need to include a flaw on purpose.

I generally need a lot more precision in my work and the above image is a perfect example of this. I started drawing this new design and I was a little off, I should have fixed things then but I went forward hoping for the best. I got so far off that I couldn't even complete what I was doing and it was a lot worse to try and fix.
I can still pull something out of this jumble but it won't be what I was hoping for.
Learn frommy folly! I will try and learn as well.