Re: Omg a sig :O
the last two are loads better.
the metroid one flows very well, but you need to work on lighting, and creating a single focal point that all the motion in the sig moves toward. like in the metroid one you have different patches of super darkness and vivid light--all under what looks like brightness/cont. screen with the brightness turned down and no adjustment to contrast. you did a much better job of blending the render though and it's a big step forward.
the naruto one flows nicely and has a good color scheme, but it's kind of flat, and monotone. try using negative space to add depth to sigs like that. render looks nice and effects look nice.
good job, you're improving.
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November Juliet.