Yuji Uekawa's art style seen in many of the Sonic the Hedgehog promo art

Characters are tagged in the dataset (Sonic characters only)

sonic the hedgehog, sonic the werehog, super sonic, miles tails prower, knuckles the echidna, shadow the hedgehog, silver the hedgehog, cream the rabbit, amy rose, rouge the bat, charmy bee, big the cat, blaze the cat, chao, espio the chameleon, jet the hawk, chaos, emerl, metal sonic, tikal the echidna, marine the raccoon, storm the albatross, vector the crocodile, wave the swallow