buster is a good looking dog.....his pose is beautiful......
i think your instincts are correct....there is a lot of empty space to the right of the frame.....i would like to see him more centered in the scene with his eyes on the upper left third......but, with this crop, he might look a little crowded.....is this the original?.....or have you cropped it already?.....more room around the top and left of him could give you that extra bit that a new crop could work with.....if that makes sense.....
peeper