The illustrations were made using knot patterns a bit similar to Celtic knots, Nordic art style, and other patterns from civilizations of old.
You can get these patterns as Adobe Illustrator brushes for yourself; check here:
https://www.behance.net/gallery/203261583/MoAzims-illustrator-brushes-vol-1-celtic-patterns
This was an exercise I did some months ago on insect animation and motion.
Characters inspired by the anime "Steins;Gate" and the score and sound effects are from the anime.
with cicada sound effect
full sample motion video, with girl character afterwards.
and referencing the anime "Steins;Gate".