Fallow: (no ref sheet) 

Dark brown tom with light brown under belly, muzzle, paws, and tails. Forest green eyes. Light brown wing bones with forest green wing membranes, pink nose. Nice, stubborn, cowardly, loving, careful.

Kogayn: (old, but still accurate) 

gentle, quick tempered, hard to get close to, harsh.

Venti:

sweet, caring, lovable, gentle.

Muzak: (I don't have an EXACT ref sheet, so here are some images from my PMV)

wise, can be harsh, sweet at times, calm, intelligent, he's been through a lot.

Badger(Strike):

Barry: (Old, but still accurate, kinda)

He's a lot skinny in reality than shown here. kind, loyal, brave, willing to protect the ones he loves.

That's all the OCs I've had the time to draw. Hope this helps Blazewhisker !