Dont know how to finish

[Fayfie]

I believe the tag would look much better if you remove the border.
I suggest you to enhance the fractal. Make it detailed, enhance the light.
Add some contrast, especially to the back drop.
Add a tint of warm photofilter to the tag, because it looks lifeless at the moment.

Edit:
Recommendations:
Make the stock appear to be releasing fire.
Manipulate the color of the backdrop. A warm shade would be most suiting. For eg. Red, orange, brown.