Shadow and Sonic

Some features of Sonic's appearance:

Colour: Blue fur covers most of the body.
Muzzle: Peach colored, as is the skin inside the ears.
Nose: medium size, black.
Sonic's chest, stomach, and arms, starting from the shoulder, are the same peach color as his face.
Needles: There are six large, long needles located at the back of the head.
Spines protruding from the back: There are two spines that protrude from the shoulder blades.
Tail: small.
Clothing: Sonic wears white gloves and cuffs of the same color, red boots with white straps running across the middle. At the end of the belt there is a small square gold buckle

Some features of Shadow's appearance:
Black fur covers most of the body.
Six long needles on the head, four of which curve upwards and two downwards. There are red stripes on the needles.
The eyes are pointed, with red irises and large red lines at the corners of the eyes.
The muzzle is tanned, as is the skin inside the ears.
The nose is medium in size and black in color.
There is white fur on the chest.
Two needles protrude from the shoulder blades, there is a small tail.
There are long red stripes on the sides of the arms and legs.
Clothing: White gloves with black cuffs and red plates separated by golden rings.

The boots are white, with black backs and golden soles in red metal frames. On the soles there are engine nozzles, thanks to the exhaust energy of which the hedgehog moves.

Shadow is a stricter father than Sonic, and also more cruel and at first glance more intelligent and evil.