Ohai!=D
1. BG of one c4d looks odd, try smudging it.
2. Text is a generic black font. Try something smaller, under the sword, and in a cooler font.
3. Yellow render + red BG = :puke: , try to create an atmosphere. Whether it be a city, smoke, fire, water, sky, space....etc etc
4. Sometimes it's almost best to create an amazing BG then try your best to get the render to fit in.
5. Smoke over the render takes away from the focal.
6. Lacks depth: I see around 5 layers, and none well blended. Try adding more infront of the render toward the bottom.
7. A thicker border would better suit this tag.
Keep up the work, practice makes perfect.

---------- Post added at 07:43 PM ---------- Previous post was at 07:41 PM ----------
You have learned well, young padawon.
*bows*
Voice your mind and help improve others.
Hey OG. I always see you give great CnC. I really wana see your work. You should get more involved with GFX.