You also need to probably do a little research into perspective and spacing. Beyond what Mighty has advised for you (and it is good advice), you have this dog entirely out of perspective with the background. She is so huge compared with it, that the image is totally confusing and unbelievable. Your drawn characters have to be fit into an existing background if you're going to do images, not just simply plopped into some scenery without any focus on the scenery itself.

Don't overreact and take this as an attack. Take it for the good advice it is meant to be. And learn. Adjust your style as people have been trying to teach you.

It would look better if you used a background where she wasn't floating in the air. There is also the left front leg that is severely bent. And just as an observation, you tend to use this pose a lot. I know that you're young, but I think you should try and work outside of your comfort zone.

Study stock images of Malamutes, Huskies, wolves, etc. I don't know of many sites out there that will allow you to use their stock for free, but I do that deviantART is one of them, and that is what I use. Though, there isn't much of any stock available for Alaskan Malamutes on deviantART. I suppose you could look up pictures of Malamutes on Google, but I wouldn't recommend it since not everything on Google, or any search engine, is for stock use.

http://browse.deviantart.com/resources/stockart/?order=9&q=malamute

I would suggest you study this one:
http://browse.deviantart.com/a [...] ross-Reference-Stock-299077531

Edit: By the way, why is this in your image gallery? You drew this yourself, so it should be in your fanart gallery.