So, I tried to color him with flatter colors, and I must say I really enjoy how it turned up.
This updated reference shows more of his markings and contains updated colors.
I'm not a pro when it comes to drawing wings, so this was totally new to me. Forgive me if they look stupid.
Here is a short description for Hermes (originally the description of the first ref sheet):

Hermes' species is a burrowing owl and he is my fursona.
This fancy gentleman enjoys solitude but doesn't lack the company of friends.
During his free time, he sharpens his deductive skills by playing strategy games with his friends.
His wardrobe consists of an array of ties and vests and is full of assorted prints and patterns of every kind.
Hermes' days are never complete without a foamy cappucino in the morning and a hot tea at night.
Although his species is know for eating insects, he prefers crab and shrimp.