Hi,
I am not an artist, and in fact, I find it difficult to even draw a straight line, so my opinion would be that of a plain observer.
What I like most in your piece of art is the sense of perspective that it generates. Believe it or not, while looking at your drawing, I felt my eyes relaxed after spending so many hours before my laptop, and the sense of relief was great!
I also like the central axis symmetry, which expands over the entire artwork, making it look like a compass in space.
Excellent!