the back legs look great from this angle - spot on to me
the front legs are looking good but could do with a little more definition and it might be the angle but they look a little close together.
the head needs some more defined shaping from the inner eye point down to the back of the mouth. At the minute its looking too solid a mass and needs a more defined transition from the snout to the cheek area. I know its hard because there is a fair bit of fur in reference pics but a bit of exaggeration here might help. I'd also pull the back outer edge of the mouth far more towards the centre as a lot of that area would only be overlapped skin folds. If you can find an overhead shot of the jaw bones and overlay it on the head then it might help with the mouth edge location better.
Slightly more indention around the back of the eye (and around it) area might also make the eyes more of a feature and not look so close to the skin, you'd probably be better removing the eye texture till the modelling is finished to see it develop better.
Keep it up, this is starting to take shape well