About a decade ago, a marine biologist named Dr. Thomas Hawkin discovered a new species of eels while exploring the depths of the Pacific ocean. He initially believed that there were actually several different species until he observed how the said creatures could change their coloration similar to cephalopods. Aptly named the Hawkin's Cutlass, the newly discovered eel has many filaments extending from its dorsal fin. They are actually laced with tiny razor-sharp projections. Combined with the cutlass' agility, these filaments make handling or capture extremely difficult. Its teeth were the longest compared to any other species of eels. Of the specimens he examined, none grew longer than 4 meters.
Two months prior to this writing, there have been reports of sightings of unusually larger specimens. Dr. Hawkin decided to pursue this even though he was very skeptical at first. In what would be his final exploration, the marine biologist was able to confirm the existence of giant cutlasses. What he thought were unusual-looking seaweeds was actually the dorsal fin of a cutlass large enough to swallow him whole. It was his flashlight that saved his life. With it, he was able to distract the creature and move away just in time. Tremendously traumatized by the experience, Dr. Hawkins told the press during one interview that he would never go scuba diving ever again.
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This is my entry for an ImagineFX weekly art challenge entitled "Something fishy this way comes"
Edit: May 6, 2011 - This entry won! To all who gave their support, thank you very much!

Technicals:
Adobe Photoshop CS5
Roughly 7 hours of work