Was hard to piece this together from random animals. If you wanna make one yourself though, here were the parts used:
Lionfolk Features - head slimmed down and enlongated, no mane. The claws from this one are perfect and allow you to color the full palm for roo accuracy
Elk Ears - I was going for more of an irl roo look, but "small rabbit ears" could also work
Lizardlike Legs - isnt really good 3 toed options? choose what you want
Mastiff Tail - Just size this up in the pose section under the gear option. Roos have girthy tails!
Sunshine Brand (Color) - By choosing the leather section to color the fur it will not overtexture the fur, making it look more roo and less lion

Feel free to make your own with these parts!