Okay, I don't usually do stuff like this, because I hate using other people's bases, but I got lazy. Here are Shelby's colours. Top three are fur, next is his skin, then his eyes. (Yes, his. He's trans*.)

The other reason I'm not keen on bases is that they can only be used for so many species; this base, while awesome, is not kangaroo-shaped. So, imagine a pouch (because I got lazy) and long, long feets. The tail is right, though, he's part dingo.

These are his colours, his shape is in the last pic.

Base is from Zhivago: here.