Well, i like the pose and the dog is attractive, the BW works for this dog i think.
Things i might do if its my photo:
a. Toning looks a little flat, raise the contrast
b. Looks a little dark in total, brighten it a bit
c. I don't know that the lower half of the pic adds anything. I might
crop it off at the shoulders and turn it into a 1x1 portrait. That loses the whole OOF lower half
d. The sharpness seems to be lacking, the lower ear edges appear sharper than the front part of the nose.
No way to fix this, but try to get a better focus next time, with perhaps a larger dof. with pets moving around, thats difficult i know from experience