I am a cancerian, and as far as I have read, there are two types of physical traits. There's the classic moonchild, with a soft, pale, round face, with big round eyes, and either skinny or plump. The second is the crab face, with small eyes, furrowed overhanging brow, and often looks cranky when they're really not. There can be of course, a combination of the two. I have a roundish/square shaped face, huge round eyes, extremely pale skin, dark black hair, and I'm tall and lanky. So definitely a moon child! :)