Finally, I've colored my reference sheet ^_^
Link to original non-colored version: http://www.furaffinity.net/view/16246889/

Name: Ryuumaru Swiftpaw
Age: 26 months old / 2 years old
Species: Human? (Father's Species Unknown)
Parents:  azzuenswiftpaw (Mommy)
Favorite Color: Primary Red (#0000FF)
Likes: Candy, Cute Printed Diapers, Hugs, Happy Music, Renru
Dislikes: Wearing Sissy Stuff, Frowns, Eating Veggies, Jeans

Ryuumaru, often called "Ryuu" for short, is a human toddler with red hair, blue eyes, somewhat pale skin, and a typical toddler figure (chubby with babyfat). His typical diaper is that of a baby-blue diaper with prints of tiny colorful cartoonish trains, cars, boats and planes across the front of the diaper, with the name "Ryuu" and/or the Kanji "竜" written on the bottom in black marker.

Ryuu's pacifier is typically has a red shield, a blue connector bit, and a baby-blue handle. Ryuu's plushie is an orange dragon plushie, somewhat like a cutified Charizard, with the same orange body, yellow-orange belly, and blue wingskin. He loves to nom on the horns of the plushie when teething or stressed.

Ryuu wears a variety of attire, but they typically involve a red shirt or a white shirt with red sleeves, almost always short-sleeve unless it's really chilly. Blue shorts or blue cloth overalls are fairly common, though tan khaki shorts work fine too. Outside of warm weather, Ryuu typically also wears white socks with red heels and toes. At night, Ryuu typically wears blue space-themed pajamas with red elastic trim in warm weather, or a solid red sleeper in cold weather, either with thick night-time diapers.