I've heard others have (can't remember where) also made a shadow of the beast III special level, so I decided to take a go myself:
(http://s20.postimg.org/ygog47o3h/Beast_III.jpg)
It's based off of the Caves part of the game, but very beginning. I've tried re-googling around to find out where/who I originally heard of doing this same level title, but all I've found were Insane Steve's levels (which if I recall correctly are just .lvl modifications using same beast I & beast II terrains, but higher difficulty and renamed beast III and beast IV). I believe I was on some text page mentioning a level called "VERY MENACING" with new terrain as well.
Has anyone else here seen more remakes of the beast levels, or menacing too?