All broken links for me
*EDIT*
I just clicked View Image and now i can see them
1: I don't really like that motion blur on the render, doesn't work for me, but i like the beam from his gun
2: The render's face is too dark, and the typo could use some work, starting with a different font
3: This one is my favourite, looks greatNice and clean, and i love the text
4: It's pretty good, except i don't like the bg that much, colour's don't fit with the render