I really like the design. I get a hint of dragon vibe from the red stripe, and semi-classic flames from the design within the spade, and the incorporation of your company name/url at the bottom works well.

What it needs is something to make it POP. The red on black works for me, but the light and dark greys are too close. Adding a fourth color complicates things, but if the jagged stripe were white it might make them work better together. That, or experiment with other colors (the silver could work, but might still be too subtle) to get something that rivets the eye. If your goal is classy/warm maybe a beige & burgundy mix, or maybe a taupe to keep you in the grey range. If you want more shocking then a green (more toward blue) & yellow or yellow and purple. Just some thoughts.