I come bearing the knowledge of... line weight! Oh, and I also found out how to properly colour inked line art on GIMP. Anyway, this is a Derinan
(der-I-nan):

They have pale coloured scales ranging anywhere from slate blue to teal to white. The males also often have brightly coloured manes that are usually complimentary to the scale colour (Like in the picture above.) The alpha male (head of the pack, usually the biggest and strongest or, in some cases, the smartest) develops stripes, usually red. These stripes tell other derinans that he is the leader (Like a silver-back gorilla). It also signals other animals to stay away. Derinans can sometimes be tamed as war mounts or pack mule type things. Another thing: Derinans have a very poor sense of sight. Instead, the pads on their feet can sense vibrations, and they also have sensitive feelers hanging over their mouths. They can see colour, but everything to them is blurry. Colours are also emphasized in their point of view. Okay, I’m done.
I might come up with more later. I’m a bit low on creativity.