The DBZ 1 could use some more blending, the render stands out a lot. I do like the effects and such behind him. Makes it look more like its in an anime.
The dragon 1 is pretty solid, its not got a lot of effects in the background, but it makes more focus on the dragon itself that way I guess. The 1 prob i might have w/ this 1 is the contrast, it goes from white and blue to purple to black and that purple to black has nothin between it. Besides that, it looks nice.
Afro samurai looks a bit too contrasted also, but I have a feeling that its the render itself. It looks a bit too sharpened tho.
Only prob w/ this next 1 is the text. It's sorta difficult to read cuz theres so much white all over the place, but its not that bad.
I really like the effects around master chief, the only thing is that they sorta distract from him. They look really nice tho, and the color works well.