Draw me a semi-realistic cat + colors.

I'm in need of a digital illustration for a web browser game that I am developing. However, the specifications on what I need are a bit odd, as the intention is to be able to auto-generate certain colors/patterns on the image based on settings in the game. This is achieved by essentially having multiple "layers" (similar to how these work in Photoshop) and combine them via code dynamically into a final image. Thus rather than having to have an artist color 100+ different variations on the same lineart, theoeretically they would only need to do the lineart, the shading, and 10 or so "layers" of different colors/patterns that would combine into different final images. General Info: * This is for a game involving purebred cats and color genetics, so the image needed will be of a cat (naturally). * Likely, for now, the cat needed will be a mere domestic shorthair standing in profile. * I would like the image to be semi-realistic and done through digital drawing (with black lineart + normal cell coloring). * I am only needing one set of lineart for now, though ideally would like the option to potentially be able to engage the artist to create more lineart+color layers in the future for other breeds of cat. (Note: Work on differnet breeds may vary, as not all cat breeds have all the colors/patterns available.) * I'd obviously need separate files for the lineart and all the different "layers" with no background so they can all be properly combined dynamically. * In regards of layers, there will be some that require just a solid "fill" of a specific color that matches the lineart, but others will be tabby patterns and/or "dilution" overlays that, with opacity, will change the base color underneath. (So some will be easy, some may require some finagling to be sure it "looks" right with the base layer showing through.) * This will obviously be displayed/used on a website/game, so the artist would need to be okay with that.