>>38864152Both were drawn by different artists. Simple as that. But they're not supposed to look different besides the more obvious features.
Here's a better example.
Look how differently Alola Meowth's paws are drawn compared to Meowth. But they're not supposed to be different. You look at their in game models or their anime appearance, that particular detail is the same on both.
SM's artist just had a "rounder" artstyle.
