Unsure about the Skyvernac. Not only was he a Wyvern so he has shorter arms because he mostly flies. butI haven't decided how you'll fight him yet. I know it wasn't going to be with the Ice Rod.
About the tunics.
Whaaat? That's strange looking. He looks to be in a full fledged robe for some reason, then he has the scarf over his mouth? Let me better explain the outfit.
1.Take Minus Cap Link before he gets a hat.
2. Make the Tunic Dark Gray instead of Green.
3. Put a hood on it.
4. If possible, make it short sleeved.
NO SCARF, his face is supposed to show. For the other Tunic his Tunic is black and his pants and sleeves are gray.