Well this is a wonderful improvement. I love your art style, Motor! I might have to enlist your services (via commission, of course) at some point
The animation, though...the spike waving looks quite awkard to me. It looks like his entire head is bouncing up and down with every frame, rather than his spikes and ears flapping in the wind.
-Images-
D'you see what I mean? The spikes should be pushed down more, as if they're actually air pressure shoving against the slope, and rather than a bouncing head, the trailing spikes need a bit of flow.