It's hard to get a full idea of the improvement factor here on account of the content of the drawings. Since the original is a chip with a face and this is only a character drawing. But I will say that the coloring and shading here does show a lot of improvement as far as depicting fur goes, the original looked too glossy, here the linework and brush strokes give some texture to the dude. Also the pose and the expression convey a good amount of emotion so that's always great. Also upon closer inspection the sense of shape in the head has improved quite a bit. Background could definitely be better though. Maybe something with a casino vibe to match up thematically with the original.