Holding onto the Edge

A couple of Gulf of California's critically endangered residents, the vaquita whale and the totoaba fish--both are about the same size at about 6 ft. Overfishing of the totoaba using gillnets have decreased both populations to the point of near extinction. The decreased flow of water from the Colorado River hasn't helped either. Current conservation efforts include the creation of a nature preserve between the Colorado River delta and the upper portion of the Gulf of California.
Originals are 11X14 done in pen and ink for work.