The illustration is by Storn Cook.
The cover template is a modified version of the Dragon Template Pack by Lord Zsezse Works.
Note that the cover dimensions are for a 5.5" x 8.5" document (US "statement" size), the same dimensions as the Google Doc.
Eberron is a trademark of Wizards of the Coast, Inc., in the U.S.A. and other countries. All Wizards characters, character names, and the distinctive likenesses thereof are property of Wizards of the Coast, Inc.