I'm sure he'll look great in a few months. Out of the two rescues I have, my female has been the most impressive "before and after". I won't go into what she looked like and went through, but I will say she was two years old and 300g. In a matter of four months she has shot up to 712g, not "power feeding" either.

I love seeing how quickly they can recover. Such incredibly hardy animals. Good luck and post pictures!