The text in numbers one and four is sick! I like the background use as well, but I think that the lighting and such really overwhelms it. Its like you can hardly see the render with the exception of number four. Maybe tone their opacities down just a little bit so we can see the renders more. Awesome job!
Thx White Tiger, next sigs i'll fade the lighting so, haha, nice catch. Glad to see you liked it, PANIC.