^ Looks good overall, though could use some finishing touches. Though I'd capitalize the T in Tail... it is a proper name after all. Maybe give that minor flames too, orange by itself looks ok but also slightly off color. Adding fire to it should help disguise this. I'd also add a bit more flames (or brighten the ones that already exist) to the head, wing tip, tail tip, and feet tips, since the overall shape looks slightly off due to it not fully in flames.
On a side note I think this logo design would be Natsu approved.