8/10 Lighting is awesome could bring out the render a bit more though overall nicely blended Good job
7 - Nice effect around the render but make the canvas size a bit bigger so you can do more stuff to the tag, I always use 380x80..
9/10 - The top one is amazing, nice colour blending. As for the bottom one, well seen plenty of renders like that on DA.
8/10 I like it. One thing cool would've been to change the color of the girl to make her stand out. I didn't even realize she was there until I had realllly looked at it.
7/10 the render looks like it got chopped near the bottom 0.o and the left side c4d (or whatever is there) sticks out too much IMO