I think backgrounds actually matter about as little as lip sync. Storytime animation relies heavily on narrative which - I might be wrong - frees up the animation process creatively.
Some people gave you really weird feedback.
I'll get to watching that video next chance I get, but first:
Whether you hate it or not, you're AMAZING at it. You have that conversational cadence; this spoken word rhythm that's just lovely to the ears.
Anyway, have a wonderful day. 😁