Actual watercolors instead of just digital coloring like he's had since RS. I think he still inked his lines by hand at least for a while after that, though.
I still like his modern art and technically he's definitely improved if you look at his more elaborate stuff, but his older art definitely has a different charm from his newer stuff, and his style itself very clearly changed for humans around Platinum. Personally I like his human art from circa Crystal and circa FRLG the most.
>>32438286Ohmura did most of the Pokemon art for SM and it shows in the coloring and linework. Sugimori only did art for the Alolan Forms, the new Zygarde forms, and I think Magearna and Ash-Greninja.
Ohmura has left Game Freak though, so who knows who'll do the art for Gen VIII's Pokemon, especially since he was supposedly being groomed up to replace Sugimori at some point for quite some time.
