I like 3 of them, and "E" from the middle of it, It reminds me a classic bio survival-horror games like Parasite Eve 2 OST.
"B" and "D" were nice and diferent
B - more electronic
D - more symphonic
I want to see all 4 of them (with a slight correction for the first 1/3 of the "E" to make it more melodic) in dynamic musical themes.
But most of all I want to see "J" - good dynamic electronic balance, I like it.