Well, there aren’t any ethnic groups in their universe, since theirs is not the same as ours, no countries or nations are defined, but yes, some traits or even stereotypes can be found in the characters for the only purpose of representation ( which in these days is essential and necessary). That means if we decide some character should speak or look like from some nationality ( mostly familiar for us ) its mostly for character development and so people can relate to them. In our case some of our characters speak english and some others speak other languages too ( mexican spanish, even maya sometimes), just to diversify the cast and make this a fun experience for everyone.

So in the case of Hispanic/Latino characters, we got Joe and his dad Jose, they are both mules, they run the village’s produce market. Virgil sells part of his vegetables and watermelons to them.

I tried ^^;

Ah, okay. Unfortunately, I still don't have a whole lot of good advice for you, since I'm mainly a therianthropy person D:

Those are usually referred to as "phantom limbs" or "astral limbs". Most therians/otherkin experience them with varying frequency. I, for example, always feel a feline tail and ears and often a set of wings.

Feeling phantom/astral wings isn't a sure sign that you're some sort of nonhumanthing, though. Wings can be symbolic or totemic; they're a pretty ambiguous phenomenon. If you feel them a lot, try concentrating on them to get a better idea of what they "look" like. If you feel a strong connection to a winged creature, play around with the idea of being a therian/otherkin. Don't label yourself as anything immediately, though - just do some exploring and introspection. My resources page and "discovery" tag might be a good place to start if you think that's the direction you're headed.