Help with modding character.

[Narmlet]

So i decided to whip up another PC,with the intent of making him look like a Behemoth or more specifically,the 'Final Fantasy 14" design of one .I have decided most of changes that i think should fit,but i'm still having problems with some body parts,like:
Ears- I really dont know what kind of ears to give him,since there's no option to put them either on top or the sides of the head.
Horns- I thought of adding bovine horns but they dont really fit.
Spine - Or if you can mod a a dorsal fin to be specific.If there's none then he shall have dragon wings.
Tail -Same as the dorsal fin.If there's none like that he'll have to go with a dragon one.
Thats most of things i have a problem with.If you have a suggestion for what would be more fitting that would be welcome.Thank you in advance.

 

[Kazama]

Equine ears grow up, though the description would suck. Canine? "The back-length, black mane of quills on your head is overlapped by a pair of pointed dog ears"
Definately bovine horns! "Two huge horns erupt from your forehead, curving outward at first, then forwards. The weight of them is heavy, and they end in dangerous looking points" Any other horns (save maybe rhino) are worse.
Spine... is hard. Shark fin is something i guess. But it hardly fits.
Tail, either draconic or frostwryrm. They mention scales but at least look lethal.

Tauric scenes sound like a better fit for the behemoth. If you can ignore that part of the description, then give em exra legs and go for it