Rendering of great days opening in desmos by me
I am pretty happy with how it turned out.
EDIT: how I made it-
the process is done from frame to frame
convert the image to grayscale and apply some filters(like gausian smoothing, bilateral filter, etc) and find the edges
make them into contours and do some optimizations to remove contours of very small areas, join the ones that do not matter,etc.
convert them to polynomials using mathematical tools like Lagrange interpolation, splines, Bezier curves, etc.
This is a lot of oversimplification, but this is essentially the crux.