First of all I love the colors and the fact that you sticked to a color mood and didn't use many colors like a lot of colorist do
The only thing I would say here is I think that if you lighten or color tone the the inks in the background a bit (the ones on the right side of the wolfs face and especially the ones behind his butt) you would create more distance between the wolf and the background and make the creature stand out even more.
I know it's a small thing since the overall effect is already great!
Really nice subtle work here Mike! At first glance it's just a bunch of blue and green, but the red/pink around the muzzle and arms adds a ton of character. And those golden eyes suck you in right away.