open up a true CnC thread to get the most tips, but really it's just quite an outdated style you're using so it's not going to get that great ratings. Try mixing up the colours a bit more, get a defined light source instead of lots of little ones, and work on the text Rate this too:
Lighting is good(and bad, the left side is too bright imo) and effects are ok, text just doesn't work. 6
9/10 Like the colors effects and overall flow of the tag. Only negatives are the flames are too sharp