Raptor,
Sorry this took so longer, here's a redline! C:

The first thing I noticed is that your wolf seems a bit... puffy, yet at the same time thin. Too thick at the back and legs, but WAY too thin at the neck and stomach.
The back needs to come WAY down. Some fur does tend to puff up at wolf's rump but, for the most part, the rump is lower than the shoulders-- it's a nice slope.
On the opposite end, the stomach should be fuller-- or appear fuller, as there will be lots of clinging fur.
The legs will be much thinner, and should have more appropriate bends to them. Legs should not be drawn straight at all; even the front legs have variations in them that make them not straight.
The shoulders of a wolf's legs DO come forward, but you have them popped forwards a bit too low. Bring up the line of the shoulders into the neck fur, and make a nice slope for the actual leg. The elbow is generally tucked up close by the belly fur.
For something I made on wolf hind legs, you can find a link on the front page of this forum.
The tail is an extension of the spine and should be higher up because of this.
And as far as neck fur goes, you really need to puff that baby up-- face fur, too. Wolves, like tiger's generally, appear to have a "full", almost circular face thanks to a lot of fur. In addition, their necks are almost like manes. The fur of the neck should nearly show past that of the face from this angle.
The neck should also be a bit lower, as well as the head.
As far as the face goes, your wolf's ears are a bit big-- but that's usually personal preference-- and should be placed a little farther apart on the head. Your wolf's nose also appear to be a bit "pinched." Rather than having the lines that show the sides of the nose flare out as they get closer to the eyes, it would give a better appearance of the nose getting bigger at the end if you have the lines start smaller near the eyes, and widen at the bottom.
Canines also show a "top" and "bottom" to their noses, and defining the two with a line in the center can give the face a deeper look.
The mouth also looks a bit crooked.
Keep practicing and don't forget to reference! C:
Here's an EXCELLENT reference that details just about everything covered in this critique,
http://sikaris.deviantart.com/#/d349kow