I suppose so? But also not. Because if there is an omnipotent being who created all of humanity and the cosmos, I'd imagine they can appear as any race, species, gender (or lack thereof) that they wish to appear as for whatever purpose that may serve.
Sure, they could, but if we're talking about how
human beings depict their gods then, they
picture them as looking like them. Most depictions of gods, pagan, Hindu etc look like representatives from the local population.
There aren't many statues of the Abrahamic god, but a lot of the depictions that do exist as with renaissance art, he looks like the old white dudes who were running the church and the aristocracy back then, that or borrowed features from Zeus or Jupiter.