I am not opposed to critique, but what exactly is 'bad' about it? I know it is not perfect, but I would not go as far as calling it 'bad', at least without a bit of explanation (especially considering that the original is a pixelated cat/wolf character).
Eee! Arcanine was always one of my favourite Fire-type Pokemon! And this is just utterly gorgeous - I love the way you detailed the fire, the intricacy of the stripes, and the expression... so awesome.
Aaaaah . . . . it's a tiger wolf! And he's on fire! No wait a minute, the mane around his neck make him look like a lion. Is it a tiger/wolf/lion? What is this creature, it looks really pleasing to me! I really like the use of colors. Dark orange for the main body, and bright yellow for the mane and effects it really brightens this character up! Nice job!