In late August, writer Gene Luen Yang posed a challenge to his peers in the world of comics: Write characters who are different from you, racially and culturally, even if it's scary. That can be tough to do without being insulting, or tone-deaf, or resorting to stereotypes. What can really help for writers is input from people of the races and cultures that they hope to depict; people who can gauge whether a work has the right level of sensitivity and understanding.
Luckily, a whole bunch of cartoonists have come together to offer up advice in a post on Midnight Breakfast titled "Writing People of Color (if you happen to be a person of another color)." It's chock full of insight.