I myself do only some of these illustrations. Paul Rhoads inked most of the others. Paul was the Editor in Chief of the VIE project and I one of the worker bees who did scanning, OCR and proofing of stories. So we are both major Jack Vance fans.
I translate Vance into Esperanto for free distribution as e-books at
esperanto.us and these illustrations were all contributed for that effort. The project is on-going. I am always recruiting for artists who are Jack Vance fans to contribute cover art illustrations.