Basically, the costume would be of a similar design to The Creature from the Black Lagoon (look it up if you dont know what it looks like.) It would be mostly grey, black and white (similar to how it was in the film) and use a trident as its weapon. (Not necessary, but if you could include some cool water VFX for when he walks and jumps back, that'd be neat.) Paying flux depending on how well done it is (up to 30k, if its done REALLY well WITH VFX)