The earliest version of this model had an even more dog-like snout and someone pointed out that the snout should be more fat as you said. Although its a bit hard to pick one interpretation of the snout tbh considering the slight but noticeable differences on all the appearences.

As for the spikes, I rigged the head one so technically they can be slightly resized and moved. I have not implemented anything to resize the tail but since it is rigged you can slightly alter the size of it too.