Hey man, i like the short film, but there is so much more you could do with it.
I suggest making the whole thing set in a darker dingier place. And the german scientists need to be in some sort of concrete bunker. With on light pointing down on the microscope.
I think of zombies and i think, running through deserted city streets and (in Nazi Zombie case, concrete bunkers, browned grass and overcast days, (or inside, completely dark and scary.).
Dunno if that will help, but i hope it does.
Cheers, Dave.