Some chinese splash art are downgrades to our current splash arts
Seriously Riot, not ALL splash arts should be changed.
Example: Renegade Talon Chinese art looks like Singed and looks more of a fanart. https://2.bp.blogspot.com/-gM556lzCWPI/VwQKES40koI/AAAAAAAANAU/7-EUwp90mdwOB2Ax4CaxF9MyymI4JuCCA/s1600/Talon_Splash_1.jpg
Current Renegade Talon at least look human... https://i.imgur.com/XpcQgPX.jpg
Another example:
Groovy Zilean Chinese art looks like an evil goblin what the hell? https://2.bp.blogspot.com/-LZUKO1hFoJE/VwQKI-oKjvI/AAAAAAAANBo/rpZ-QIAs3fQUxKBLHw-suZjyQWnlq54ag/s1600/Zilean_Splash_2.jpg
Current Groovy Zilean DOES look like a happy hippie http://static.lolskill.net/img/skins/1215/zilean_2.jpg
As for others are indeed an upgrade but those 2 are just an example of how bad some chinese art look and does not fit at all with the others. I also personally dislike the fact that some female champion splash art look like anime fanarts (I'm not against anime) but the anime looking splash arts does not fit with the current art at all... not saying the old ones do but the coloring and style would fit more than anime looking art. Many of the chinese art are too bright and colored compared to the NA ones...
example: PAX Sivir chinese looks just like a fanart on deviantart https://3.bp.blogspot.com/-Z3iV7a3tZn4/VwQKDnLzohI/AAAAAAAANAI/49NGZ7oV0y0DtBmlZ_FkMAOGtC6l8l_DQ/s1600/Sivir_Splash_5.jpg
Current pax sivir looks way better imo and does look more like the ingame model https://36.media.tumblr.com/95a7cec2f50b0657e48f19b9a180ea2c/tumblr_n16fpp4sOi1t1opl8o2_1280.jpg