I'm intrigued by the concept of evolutionary dead ends. These species are granted an existence devoid of meaning, at least in standard historical terms.
They are unencumbered by legacy. Their life, their existence, is insular and free from our ordinary measure of value. This type of independent existence either matters or it doesn't.
As with the Mounts, this subjective theme offers a good metaphor for the act of painting. Minus an overt linkage to social benefit, does individual artistic creation matter? Does our existence matter intrinsically or must it be justified?