Maybe I'm being an adaptation nitpicker but..
For example the eyes of certain characters.
In the first gen Red andGreen Blue's eyes looked like the anime instead of being colored. However couldn't they have colored Ash and Gary's eyes like other adaptations do with their counterparts? They gave Jimmy purple eyes and that was just a few years later. Also, it's probably the anime's art style compared to games, but some of the eyes look different. Like Barry's compared to Pearl's.
For example the eyes of certain characters.
In the first gen Red and