The head morph looks very good — will you include a tail morph as well? I'm having to jump through a few hoops with the existing vixen and skunk textures, getting the tail to look right. BTW, I've seen pictures of wild dogs in close to calico fur patterns, so white ear tips would fit in nicely. And yes, they can be used for a sort of semaphore. Sometimes the ears sticking up are the only thing you can see of a wild dog... =) I'm not sure if the whiskers are particularly noticeable, though.