It's been awhile since I've last posted here! Developed Seirios a bit more and finally made a reference sheet for him! Nothing crazy, thought I'd share :>

Some extra information about him:
Seirios is an Albino male deer. His mask is made of carved birch wood, and his antlers have a similar look but somewhat duller. During the night his hooves give off a soft blue glow. Only then he is facing you directly will all the lines and stars of the constellation line up to create the full star map in his antlers (Canis Major & Minor). See for reference > http://endlessforest.org/community/seirios-overgrown-wip
He is overall curious and a bit nosy, quiet, and somewhat abrasive. Yet he is forgiving and always willing to help others when he can. When challenged he tends to fly into wild fits of aggressive behavior, fully aware of this he keeps his distance from any forms of competition. He isn't one to sit still for long periods of time, it is common to see him wandering around.

Still a bit of a WIP but we're gettin somewhere!
-Siri