It's not necessary to explain each one, right?
If so:
#5 is great, I like how the person 'transforms into liquid' (leave me alone, no idea what pretty word should I use
), great choice of colors as well.
#2 would come second, some nice colors and effects, but the right side is pretty much empty. And the text is not well readable (Well, maybe it was supposed to be like that :/)
the rest are either too sharp or too blurry... #3 is good, but I liked the above more