I was browsing FA and I found this: https://www.patreon.com/Khralzar
Its a game called Shades of Elysium, they have a very simple but effective skin customization: http://www.furaffinity.net/view/23394741/
They are very limited in body modifications, but it raised one question: how is the customization going to be made in Yiffalicious?
I personally prefer and support something similar to how The Sims 3 did with their animal Sims: presets of types of tails, paws, body shapes, nuzzles and ears, with modification slides being used for the final touches, modifying event for length and shine. Another thing The Sims done right was the ability to use layers of markings with free color palette and custom placements much like the vynils from Need For Speed.
Another interesting feature that I think would be valid is the option to import transparent files (like .png) to be used as tattoos, or plain files to be used as patterns for fur and clothes. And if that isn't possible, the next bext thing would be a separated App for customization of skins, where users could paint in real time over the characters they created, like a living canvas (what would improve a lot the perception of shading and color for each creationg).
With these in place, you can virtually create any OC, fursona or whatever (I have high expectations for this game, if that wasn't clear).
What do you guys think?