The theme I was aiming more was the expanding web of fates, which was hinted at by the butterfly and spiderweb. Admittedly, I could not tell the message more explicitly because I lacked the time to do one important animation: the zoomed-out spiderweb showing more butterflies caught within. Oh, well, I've done what I could.
I find it interesting how some people like the melancholy of the first part better, while some prefer the American Gods-filled plot of the last half. I'm just happy that they can serve as something that can capture people's interest, one way or another.