from a quick look at your pics, you have made some fantastic progress.
Chest is bigger, abs are tighter and arms clearly bigger too.
More importantly, your whole posture and proportionality now looks 'fit' whereas before you looked as if you had a relatively inactive lifestyle.
Great work so far.
Looking at your latest pictures your body fat is pretty well under control, whilst you are still quite lightly built in terms of musculature, so you would probably see some impressive results from a clean bulking program.
"I can't remember if I'm the good twin or the evil one..."