I agree, you do look slimmer - both in cheeks and neck.

But I think another 50 pounds would be a bit much. That would put you at around 125 pounds. Unless you are very short, that would leave you underweight. Maybe another 20, or so.

Sorry, I guess I had a brain malfunction. I was thinking you were down to 175, not 275, judging by the pictures.

Also sorry, but from the photos you don't look like you could still be ~275 pounds - no matter how much muscle or bone.

You sure you have an accurate scale? Or are you nearly 7 feet tall?

  I agree with those that said you lost a little weight in your face.  You don't look overweight by your picture.  Just a big guy.  The military has a scale for height to weight ratio.  Looks like you might be fairly tall as well.  You also look fairly healthy in the last picture.  Seems like your doing fine.  I don't know what exercises you do or how much time you spend on that, but if you spend at least half hour a day doing some exercise you should be fine.  I recommend walks with dog(mile or 2), stretching, and maybe some light situps.  The stretching you should do slowly and focused.