I was feeling nostalgic, decided that I will go back to some of the earlier chapters in Bleach, take a glance. Especially the Soul Society arc.
I was amazed to see how much the physical character designs have come along. Sticking so long with this series makes one not even realise how subtle Kubo was in making the character features "grow". If you check out those chapters, Ichigo looks almost child-like, frail. Now he totally manned up in appearance after time, and after so many battles. Same holds for the other characters.
I thought Kubo did well on that front.
Have a look.