Well, appearance-wise, Gigi has my hair, sometimes my glasses (she definitely has my poor eyesight), and her anthro version (she is mostly quad) has my height/weight/body type/ect. She's pink because that happens to be my favorite color, though her color scheme has a deeper meaning than just my favorite colors (because I don't actually like blue much).
The reason Gigi is a goat is not only because I find goats adorable (though that is why she's a pygmy), but I share a lot of traits with goats. We're both curious, intelligent, and hard-headed (in the stubborn way and the determined way). We like to have other people for company, but we are perfectly fine going off alone sometimes. No matter how far out we go we are still domesticated and have ties to friends and family.
Also, we will eat literally anything, though I do prefer vegetables over meat. I am currently living abroad in South Korea, and I made a promise to myself before I left that I would not turn down any food given to me. This has proven to be a gift and a curse. I've had good things like live octopus, aloe vera juice, and raw meat, but then I've had the not so good things like silkworm larva, onion juice, and raw fish innards.
While I was born in the year of the Dog, my personality matches that of the Goat more than the Dog.