I agree that you should probably try again. I have an idea though: You should study some pictures of fire before trying to draw one. Real artists do that all the time because they know that the picture in their mind's eye doesn't look like the real thing. In fact, you should try to copy a specific image like this one. You may think it's like cheating, but students in art classes spend a lot of their time doing that.
Your colors are fine, but your fire is round while real flames have a chaotic shape with large holes in it. You also have a yellow glow surrounding the whole thing, and that doesn't exist. (I would also recommend using a dark background.)
Campaigns: Dead Water
The Founding of Borstep
Secrets of the Ancients