Combinations of animals and humans - anthropomorphic animals (Sonic the Hedgehog)

The 'Sonic the Hedgehog' series has character designs that are good examples of animal features being combined with human ones.  I decided to study my favourite group of characters, known collectively as the Chaotix, and draw them.  These are the images (official art/character models) I referenced of the four characters, Vector the Crocodile, Mighty the Armadillo, Espio the Chameleon and Charmy Bee, who I drew; however, being familiar with the characters already, I found them relatively to draw:

Here are my drawings of them:

These drawings I them inked with a combination of India ink and fineliners: