With... an axe? :O Starting to get some Hexxen/heretic vibes here... any possible inspirations there? An attempt to bridge the links between the worlds of the iD universe?
Feels like the green slime's a bit out of place, if it is slime, but overall looking good.
The scientist: axe is almost unnaturally straight there. Very protruding.
Would be pretty cool if you turn some of these into actual sprite sheets btw, movement and all, could make for a good game. Whatever the context.
-cd-