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@gtav tornado You'd have to know how to use Photoshop (the basics, the Match Color function and various selection trick) to edit the texture, and then open up x64v.rpf, navigate to models -> cdimages -> streamedpeds-players.rpf -> (one of the following: player_one for Franklin, player_two for Trevor, player_zero for Michael) and then replace the texture files. Then use Advanced Native Trainer to manually select the models and textures you want.
But if you want the actual Judy Hopps model and not just, say, a recolored texture file (blegh!), you'd have to splurge out 4.5 dollars for a one-month Zmodeler license (only Zmodeler will work) and ask around and learn how to rig the a Judy Hopps model (downloaded somewhere on the Internet) into the skeleton of an existing pedestrian or player model. You'd have to ask around on the Internet because I don't know how to do this though.

@gtav tornado Do it! Have fun!

@HeySlickThatsMe Thank you! Glad you like it.