This is closer to how they actually look. Bitkin are really not much more detailed than a 16-bit game sprite would be; it's part of the world they live in. Bright colors, geometric New Wave shapes — you can't call it "unrealistic" if that, to them, is reality. The same goes with their own bodies.
Meanwhile, these four are demonstrating that Bitkin are inherently musical. All of them play at least one instrument, and several know more than one. It's one of their favorite things to do in a group.