What I learn from sketching this was his hair. This was actual first for me to draw fur/hair around to the sides of the head than usual which gives a nice human image so I glad I tried this so I thank you RH.
The collar is nice touch but not something I draw in my opinion since I very picky person on fashion. I'am a fashionista after all lol
Also I notice I spelled his name wrong I sorry Ruffe I added a L by mistake please forgive for that VV