I liked the metaphor and how you used it.
"A flame traced in black.
Your outline
All too clear,
But the rest of you
Constantly shifting"
and
"Thousands of shades of
Yellow
Red
Orange
Fading in and out of each other"
and
"Wishing that I was brave enough
To play with fire."
were some really good lines that depicted fire really well. Great job on this :)