Nautilus and Ammonite: Ghosts

The next finished artwork for the Nautilus and the Ammonite book project. Here the Nautilus has given up her search and is haunted by ghosts of other, more recently extinct species. They are all species that went extinct during the age of humans and due at least partially  to human activity. This image is meant to be paired with this stanza that compares the Nautilus's loss and grief to our own:

And alike do we, on life's stormy sea,
As we roam from shore to shore,
Thus tempest-tossed, seek the loved, the lost,
And find them on earth no more.